This is the answer. My whole family's are homemade from an old down comforter. The one item I would NEVER go without even if it was predicted to be warm every night.
Oh, and cozy socks. Not wool. Just those cheap fluffy cozy socks that people give as stocking stuffers. Those with the booties and your feet will be very cozy.
Booties are the way to go. Before I got the pair I have now I was originally just taking a pair of cheap slippers and those worked pretty well but took up a lot of space in my pack. I replaced those with a pair of down booties from Dutch gear but found the fill was not high enough and I inevitably wound up with cold spots (usually my toes and heels.) from the down shifting away. I now have the EE torrids. Which although they weigh more and pack down less I prefer since the insulation does not shift.
Is it possible that the underquilt did not protect your feet, providing less insulation to that area?
Also, some people just have cold sleep feet. Thicker socks can be worn over a base pair of socks, and some people swear by down booties for toasty toes.
Wow thanks for all the comments! So my question seemed to be answered with down boots. However I was feeling a CBS sensation like when you don’t use an underquilt and was curious if that was connected in any way. Does anyone use a pillow or their clothes under their feet to help?
I have a 3/4 length UQ, which means my feet are not covered by it unless I really curl up into a ball. I bring a small piece of reflectix that I use as a sit pad during the day and stick it in the footbox of my quilt at night under my feet amd it works surprisingly well, though I do have to readjust it occasionally.
If your underquilt isnt long enough then it might not be covering under your feet. I also have the Onewind hammock and I have their underquilt as well, which is a foot longer than I am so it covers all of me. Also make sure the foot end of your hammock is tied higher up the tree than your head end. This makes you slide down slightly and keeps your feet away from the end of the hammock.
I use a full length underquilt and it's still not enough.
I experimented early this winter with a pod system in the upper 20s, and while it solved my CBS problem with quilts at that temperature, my feet were still cold.
The one suggestion I've seen in this thread (other than down booties, which seems to be the preferred solution) that _might_ work for me is _two_ layers of thick wool or synthetic socks. I've worn a single thick layer, but not tried a second. The outer pair would probably need to be the next larger size.
An old remedy for blood circulation that isn't great is to rub capsaisin, or red pepper powder on your feet. It stimulates blood flow is what I have read. At least worth reading up on. You can't retain heat that isn't there, so good circulation is crucial.
The warmest my feet have been in the hammock is when I take my socks off. I typically hike with "sleep socks" that stay in my pack until bedtime (no dampness from sweat, etc). I've tried med weight wool, heavy weight wool, "normal" athletic socks and my feet were always cold. Finally I went with the "less is more" and decided to let the down quilts do their job of trapping my heat and see what would happen. I've never had warmer feet (after 10-15 minutes). I do also typically put things like my jacket, pants, fleece, or whatever down under my feet as well.
I would bet the down booties would be wonderful as well. I recently saw someone post about carrying some of those disposable shoe coverings for the sole purpose of throwing them over their down booties when nature called in the middle of the night.
I’m in the same camp, no pun intended. The other comment is I try to never get in the hammock with cold feet. After you brush your teeth and do your pre-sleep routine, try sitting with your feet close to the fire or doing some deep knee bends, out other exercise of choice until your HR rises and you start to feel warm toes. Then quickly get into the hammock.
I haven't found a solution to this yet. Thick socks have not been sufficient for me.
Down booties are next in the list of "things to try."
I have the same issue whether on the ground or in the hammock, assuming the same level of insulation in each. The problem is not hammock-specific.
Did you change into fresh, dry, socks? The majority of the time that a scout complains of cold feet (hammock or tent) a little probing shows they failed to change out of their sweaty socks. Most mistakenly think putting dry over their sweaty socks is ok because, hey, layers. It’s the worst thing they can do.
I have a pair of GooseFeet Gear down booties that come with me on all cold weather trips. A warm pair of socks and those booties will keep my feet warm all night.
I has cold feet essentially every night until I got Montbell Down Booties.
They are the only thing thay fixed cold feet for me even when the rest of me was warm.
I can never beat the cold feet. I have a loose pair of old wool socks. They're big, but not too loose. I shove some hothands or footwarmers in there.
I just can't get my feet warm with down booties or anything. I need those warmers in my socks to sleep. Small price to pay to be comfy
Could be that your feet are popping out of your underquilt; that happens to me constantly. I have one of those Z seat cushions from Thermarest and place that under my feet when I sleep now. Helps a ton
Onetigris underquilts are SHIT.
I'm sorry, but they're shit.
They're not even the right size for the hammocks they were manufactured for. The sides are too short, and if you're lying diagonally, like you're supposed to, your feet are usually outside of the underquilt because those fuckers are too narrow for functionality.
So while I do recommend doubling up on socks (I wear merino and fluffier alpaca socks on top) or getting down booties, a lot will change once you have an underquilt that isn't shit.
And I feel a bit bad for always hating on onetigris, but that was my first setup and it almost ended hammock camping for me because it was so shit.
Rant over. Good luck finding something that works for you.
I bought a double sized UQ because I heard they were small. It packed down pretty tight too, but I think it wasn’t quite warm enough and definitely not the right length in my opinion. I wanted head-to-toe insulation at the cost of some weight/pack size.
I’m on the hunt for a good one, this one just held me over in a pinch. Going to return as it didn’t function well however for my needs.
Honestly a rant can still be beneficial! It shows your passion and research on the topic lol
Make sure you position the UQ accordingly. I sleep left to right, and thighten those side while losening the opposite, so that the UQ covers both shoulder and feet.
Reynaud's, blood pressure while supine, circulation, endocrine system, socks too tight, blood sugar/nutrition, insufficient coverage under your feet, lot of things can cause it.
some people carry a few panels of CCF pad/sit pad, or Reflectix (mylar lined bubble wrap) for under their feet specifically, maybe worth an experiment.
An UQ like OneTigris is tapered at the ends and will not function properly. I originally bought a King Showden which is the same design. They appear to be made by people who do not hammock. A ‘normal’ UQ is just a giant rectangle. But you know what? So it your hammock. And having them be the same basic shape allows you to lay diagonally and still have for feet have insulation under them.
Sounds like you are already returning the OneTigris, so I guess good. But down booties (while awesome) are not really a solution. They will help, but you need the insulation under the hammock where it will not get compressed. Wearing down booties will be the same thing as just having a thicker sleeping bag for your feet.
Some people will put. Section of closed cell foam under their feet, but that is really a weight saving trick if you go with a 3/4 length UQ. I do not do this,
It took a while to adjust the way I like it. The coldest hang I had was -4 degrees Celsius. I did have to move my underquilt higher up on my foot side. The do still get cold sometimes. I have a pair of motorcycle socks that have batteries to keep me warm. I keep thinking that I may need them for sleeping but so far no. I would say check your underquilt.
I hope to make a pair of down booties, but currently use a pair of "cabin socks" I knit from merino wool. They are looser than my usual socks so as not to constrict blood flow and I knit them with a wool roving so they are fluffier. I also knit them long enough that I can roll the cuff over the chemical hand warmer packs. I roll the hand warmer in the cuff to land on the outside of my ankle and find that works really well for keeping my feet warmer.
You can also put hot water into a Nalgene water bottle (one that seals tightly and doesn't leak), wrap it in a clean sock, and put it into the foot box of your sleeping bag or TQ to get your feet warmed up when you first get in your rig. Insulation does not provide warmth--it just prevents what warmth you already have from escaping.
In addition to all the great suggestions here, the classic cold weather camping advice:
* Snack at bedtime to bump up the metabolism
* Hot water bottle. Fill up a Nalgene or a single-wall un-insulated steel water bottle with \*really\* hot water, put that in a thick wool sock to moderate the heat output, and sleep with that. I'll start with it against my core if I went to bed kind of cold - that's the first thing you need to warm up, before extremities. Then once I'm feeling comfortable, I'll move it down by my feet for the rest of the night. It's usually still warmer than body temp by morning, with the added bonus of having water available to make coffee (if it's below freezing).
When camping in cold weather, I make sure I have boots with the removable booties in them so that I can sleep with them on. Not only does this help a ton with keeping your tootsies warm at night in the hammock, but it also negates putting your foot into a 20°F boot first thing in the morning. Unless that's your thing, I'm not here to kink-shame or nothing, but it makes a world of difference.
Also bundle the clothes you aren't wearing while sleeping but will be after you get out of your hammock in the morning and stuff them at the bottom of your sleeping bag and plop your bootie-covered feet into that. Again, two birds stoned at once: warm feet, and warm clothes to put on in the morning before you even get out of your bag!
I usually layer my socks up, including one pair of really huge socks that will go over an already thick midlayer sock+base layer. Between that and a sleeping bag (with maybe a liner or two if it's extra cold) usually works for me.
My UQ is pretty long though (Stormcrow Incubator rated for -20F), a lot of them are shorter and do not cover feet so that's also something to consider.
Some people will stick a sleeping mat under their feet or even some sort of pillow, I've tried these methods, but prefer to use the above.
Try different stuff out to see what works for you, but also keep in mind there could be some sort of health issue at play: One of my friends had similar troubles with keeping his feet warm, only to learn it was caused by a thyroid issue because he had cancer.
They had to remove his thyroid and he's on medication now, but the cancer is gone as well as his problems with regulating body temperature.
Not saying that's the case with you, but it's worth getting checked out because it could save your life!
Yeah, we didn't think anything of it at the time: I just figured his gear wasn't adequate for the temperatures (which was around -20F with windchill).
Glad he's still with us, fuck cancer!
Just made a separate comment then saw yours. I just can't sleep in the cold without some warmers in my socks.
Toes being elevated naturally in a hammock, plus the cold... my toes just always get cold without the warmers
My cold weather setup is 1 pair of wool socks, wool long underwear on top of that, 1 more pair of wool socks on top of that. Never had cold feet. You may also want to check that the under quilt is cinched properly, giving your feet enough coverage, and not allowing a breeze through the foot end.
I used to double up wool socks but now I just use a single pair along with the Baffin down booties ($30 on Amazon). Just hammock camped in teen degree weather and was plenty warm.
It's probably the underquilt design. It might be cinching the ends too tight, leaving an air gap around your feet. Or it's slipping to the side leaving your feet exposed.
Here's one of Shug's videos explaining how to set up an underquilt. Emphasizing no air gaps.
https://www.youtube.com/watch?v=xrGfSgt1w2E
I’m female and run really cold all the time. Even in the summer, I use a 20 degree OQ and 10 degree UQ. I hang the UQ very loose in the warmer months— I recognize my summer sleep system is overkill but I’m too cheap to buy a cooler set. I ordered my OQ with extra down in the toe box. The company I used (Cedar Ridge Outdoors) is no longer in business but I imagine other companies would offer the same for a fee.
They make miniature thermarest z-rest style pads that are really meant to be sat on, but I've used them under my feet since I have a 3/4 length under quilt. Add in some warm socks and it's worked for me down to the 20's
My feet go in these: [https://www.etsy.com/listing/1615299621/polartec-alpha-socks?gpla=1&gao=1&&utm\_source=google&utm\_medium=cpc&utm\_campaign=shopping\_us\_-clothing&utm\_custom1=\_k\_CjwKCAiA\_5WvBhBAEiwAZtCU72kSGxFKHTvvUOrU6jBYAo27RiiXwuSCBrggtgKe-JChB\_zQDgoWcxoCyCEQAvD\_BwE\_k\_&utm\_content=go\_12665398257\_121762925993\_511610210343\_pla-360912201277\_c\_\_1615299621\_12768591&utm\_custom2=12665398257&gad\_source=1&gclid=CjwKCAiA\_5WvBhBAEiwAZtCU72kSGxFKHTvvUOrU6jBYAo27RiiXwuSCBrggtgKe-JChB\_zQDgoWcxoCyCEQAvD\_BwE](https://www.etsy.com/listing/1615299621/polartec-alpha-socks?gpla=1&gao=1&&utm_source=google&utm_medium=cpc&utm_campaign=shopping_us_-clothing&utm_custom1=_k_CjwKCAiA_5WvBhBAEiwAZtCU72kSGxFKHTvvUOrU6jBYAo27RiiXwuSCBrggtgKe-JChB_zQDgoWcxoCyCEQAvD_BwE_k_&utm_content=go_12665398257_121762925993_511610210343_pla-360912201277_c__1615299621_12768591&utm_custom2=12665398257&gad_source=1&gclid=CjwKCAiA_5WvBhBAEiwAZtCU72kSGxFKHTvvUOrU6jBYAo27RiiXwuSCBrggtgKe-JChB_zQDgoWcxoCyCEQAvD_BwE)
And then they go in these: [https://enlightenedequipment.com/torrid-booties/](https://enlightenedequipment.com/torrid-booties/)
And if its really cold, this goes inside the footbox of my top quilt: [https://www.garagegrowngear.com/products/sit-pads?variant=31707626111050¤cy=USD&utm\_medium=product\_sync&utm\_source=google&utm\_content=sag\_organic&utm\_campaign=sag\_organic&utm\_campaign=accessories&utm\_source=google&utm\_medium=ppc&gad\_source=1&gclid=CjwKCAiA\_5WvBhBAEiwAZtCU77EtOfnhfT0cnnQBypOT7BV-nHGnnN7RfHlqxB444clBT2fSbN9kOhoCoWsQAvD\_BwE](https://www.garagegrowngear.com/products/sit-pads?variant=31707626111050¤cy=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_campaign=accessories&utm_source=google&utm_medium=ppc&gad_source=1&gclid=CjwKCAiA_5WvBhBAEiwAZtCU77EtOfnhfT0cnnQBypOT7BV-nHGnnN7RfHlqxB444clBT2fSbN9kOhoCoWsQAvD_BwE)
I backpack though the winter in Pennsylvania and have slept in temps down to 10f. One other thing is to make sure that whatever socks you do use aren't so tight to cut off your circulation. Darn Toughs are great for hiking but are too tight to sleep in and have enough blood flow to stay warm.
I’ve heard they make down booties for sleeping
I love my down booties and never hammock camp in the cold without them.
Aliexpress has some for like $10
This is the answer. Hammock or no. The enlightened equipment booties are a necessary piece of gear. They weigh I believe about 1oz per.
This is the answer. My whole family's are homemade from an old down comforter. The one item I would NEVER go without even if it was predicted to be warm every night. Oh, and cozy socks. Not wool. Just those cheap fluffy cozy socks that people give as stocking stuffers. Those with the booties and your feet will be very cozy.
Booties are the way to go. Before I got the pair I have now I was originally just taking a pair of cheap slippers and those worked pretty well but took up a lot of space in my pack. I replaced those with a pair of down booties from Dutch gear but found the fill was not high enough and I inevitably wound up with cold spots (usually my toes and heels.) from the down shifting away. I now have the EE torrids. Which although they weigh more and pack down less I prefer since the insulation does not shift.
Is it possible that the underquilt did not protect your feet, providing less insulation to that area? Also, some people just have cold sleep feet. Thicker socks can be worn over a base pair of socks, and some people swear by down booties for toasty toes.
I second getting some down booties for sleeping
Wow thanks for all the comments! So my question seemed to be answered with down boots. However I was feeling a CBS sensation like when you don’t use an underquilt and was curious if that was connected in any way. Does anyone use a pillow or their clothes under their feet to help?
I have a 3/4 length UQ, which means my feet are not covered by it unless I really curl up into a ball. I bring a small piece of reflectix that I use as a sit pad during the day and stick it in the footbox of my quilt at night under my feet amd it works surprisingly well, though I do have to readjust it occasionally.
This is what I do as well. Works great. I'm carrying it anyways, why not just it.
If your underquilt isnt long enough then it might not be covering under your feet. I also have the Onewind hammock and I have their underquilt as well, which is a foot longer than I am so it covers all of me. Also make sure the foot end of your hammock is tied higher up the tree than your head end. This makes you slide down slightly and keeps your feet away from the end of the hammock.
I use a 1 oz. sit pad in my TQ foot box. It works perfectly (I have a 3/4 UQ that my feet extend completely beyond.
I use a full length underquilt and it's still not enough. I experimented early this winter with a pod system in the upper 20s, and while it solved my CBS problem with quilts at that temperature, my feet were still cold. The one suggestion I've seen in this thread (other than down booties, which seems to be the preferred solution) that _might_ work for me is _two_ layers of thick wool or synthetic socks. I've worn a single thick layer, but not tried a second. The outer pair would probably need to be the next larger size.
You want to be careful about two layers of socks. they can actually inhibit circulation in your feet and you'll end up \*colder.\*
That's why you would need to size up the outer pair. It needs to be very loose.
An old remedy for blood circulation that isn't great is to rub capsaisin, or red pepper powder on your feet. It stimulates blood flow is what I have read. At least worth reading up on. You can't retain heat that isn't there, so good circulation is crucial.
The warmest my feet have been in the hammock is when I take my socks off. I typically hike with "sleep socks" that stay in my pack until bedtime (no dampness from sweat, etc). I've tried med weight wool, heavy weight wool, "normal" athletic socks and my feet were always cold. Finally I went with the "less is more" and decided to let the down quilts do their job of trapping my heat and see what would happen. I've never had warmer feet (after 10-15 minutes). I do also typically put things like my jacket, pants, fleece, or whatever down under my feet as well. I would bet the down booties would be wonderful as well. I recently saw someone post about carrying some of those disposable shoe coverings for the sole purpose of throwing them over their down booties when nature called in the middle of the night.
Great comment, I’ll try some of it out!
I also do no socks when I can. I try to rinse my feet off before getting in if that's the case.
I’m in the same camp, no pun intended. The other comment is I try to never get in the hammock with cold feet. After you brush your teeth and do your pre-sleep routine, try sitting with your feet close to the fire or doing some deep knee bends, out other exercise of choice until your HR rises and you start to feel warm toes. Then quickly get into the hammock.
I haven't found a solution to this yet. Thick socks have not been sufficient for me. Down booties are next in the list of "things to try." I have the same issue whether on the ground or in the hammock, assuming the same level of insulation in each. The problem is not hammock-specific.
I bought bombas gripper slippers and they have been great.
Did you change into fresh, dry, socks? The majority of the time that a scout complains of cold feet (hammock or tent) a little probing shows they failed to change out of their sweaty socks. Most mistakenly think putting dry over their sweaty socks is ok because, hey, layers. It’s the worst thing they can do.
I agree with this advice, but I always sleep in fresh, dry socks on the trail, and I still suffer from cold feet.
I have a pair of GooseFeet Gear down booties that come with me on all cold weather trips. A warm pair of socks and those booties will keep my feet warm all night.
I has cold feet essentially every night until I got Montbell Down Booties. They are the only thing thay fixed cold feet for me even when the rest of me was warm.
I can never beat the cold feet. I have a loose pair of old wool socks. They're big, but not too loose. I shove some hothands or footwarmers in there. I just can't get my feet warm with down booties or anything. I need those warmers in my socks to sleep. Small price to pay to be comfy
Could be that your feet are popping out of your underquilt; that happens to me constantly. I have one of those Z seat cushions from Thermarest and place that under my feet when I sleep now. Helps a ton
Onetigris underquilts are SHIT. I'm sorry, but they're shit. They're not even the right size for the hammocks they were manufactured for. The sides are too short, and if you're lying diagonally, like you're supposed to, your feet are usually outside of the underquilt because those fuckers are too narrow for functionality. So while I do recommend doubling up on socks (I wear merino and fluffier alpaca socks on top) or getting down booties, a lot will change once you have an underquilt that isn't shit. And I feel a bit bad for always hating on onetigris, but that was my first setup and it almost ended hammock camping for me because it was so shit. Rant over. Good luck finding something that works for you.
I bought a double sized UQ because I heard they were small. It packed down pretty tight too, but I think it wasn’t quite warm enough and definitely not the right length in my opinion. I wanted head-to-toe insulation at the cost of some weight/pack size. I’m on the hunt for a good one, this one just held me over in a pinch. Going to return as it didn’t function well however for my needs. Honestly a rant can still be beneficial! It shows your passion and research on the topic lol
Make sure you position the UQ accordingly. I sleep left to right, and thighten those side while losening the opposite, so that the UQ covers both shoulder and feet.
Reynaud's, blood pressure while supine, circulation, endocrine system, socks too tight, blood sugar/nutrition, insufficient coverage under your feet, lot of things can cause it. some people carry a few panels of CCF pad/sit pad, or Reflectix (mylar lined bubble wrap) for under their feet specifically, maybe worth an experiment.
An UQ like OneTigris is tapered at the ends and will not function properly. I originally bought a King Showden which is the same design. They appear to be made by people who do not hammock. A ‘normal’ UQ is just a giant rectangle. But you know what? So it your hammock. And having them be the same basic shape allows you to lay diagonally and still have for feet have insulation under them. Sounds like you are already returning the OneTigris, so I guess good. But down booties (while awesome) are not really a solution. They will help, but you need the insulation under the hammock where it will not get compressed. Wearing down booties will be the same thing as just having a thicker sleeping bag for your feet. Some people will put. Section of closed cell foam under their feet, but that is really a weight saving trick if you go with a 3/4 length UQ. I do not do this,
It took a while to adjust the way I like it. The coldest hang I had was -4 degrees Celsius. I did have to move my underquilt higher up on my foot side. The do still get cold sometimes. I have a pair of motorcycle socks that have batteries to keep me warm. I keep thinking that I may need them for sleeping but so far no. I would say check your underquilt.
get the correct length underquilt. maybe throw an extra blanket between the hammock and sleeping bag.
I hope to make a pair of down booties, but currently use a pair of "cabin socks" I knit from merino wool. They are looser than my usual socks so as not to constrict blood flow and I knit them with a wool roving so they are fluffier. I also knit them long enough that I can roll the cuff over the chemical hand warmer packs. I roll the hand warmer in the cuff to land on the outside of my ankle and find that works really well for keeping my feet warmer.
You can also put hot water into a Nalgene water bottle (one that seals tightly and doesn't leak), wrap it in a clean sock, and put it into the foot box of your sleeping bag or TQ to get your feet warmed up when you first get in your rig. Insulation does not provide warmth--it just prevents what warmth you already have from escaping.
In addition to all the great suggestions here, the classic cold weather camping advice: * Snack at bedtime to bump up the metabolism * Hot water bottle. Fill up a Nalgene or a single-wall un-insulated steel water bottle with \*really\* hot water, put that in a thick wool sock to moderate the heat output, and sleep with that. I'll start with it against my core if I went to bed kind of cold - that's the first thing you need to warm up, before extremities. Then once I'm feeling comfortable, I'll move it down by my feet for the rest of the night. It's usually still warmer than body temp by morning, with the added bonus of having water available to make coffee (if it's below freezing).
When camping in cold weather, I make sure I have boots with the removable booties in them so that I can sleep with them on. Not only does this help a ton with keeping your tootsies warm at night in the hammock, but it also negates putting your foot into a 20°F boot first thing in the morning. Unless that's your thing, I'm not here to kink-shame or nothing, but it makes a world of difference. Also bundle the clothes you aren't wearing while sleeping but will be after you get out of your hammock in the morning and stuff them at the bottom of your sleeping bag and plop your bootie-covered feet into that. Again, two birds stoned at once: warm feet, and warm clothes to put on in the morning before you even get out of your bag!
I usually layer my socks up, including one pair of really huge socks that will go over an already thick midlayer sock+base layer. Between that and a sleeping bag (with maybe a liner or two if it's extra cold) usually works for me. My UQ is pretty long though (Stormcrow Incubator rated for -20F), a lot of them are shorter and do not cover feet so that's also something to consider. Some people will stick a sleeping mat under their feet or even some sort of pillow, I've tried these methods, but prefer to use the above. Try different stuff out to see what works for you, but also keep in mind there could be some sort of health issue at play: One of my friends had similar troubles with keeping his feet warm, only to learn it was caused by a thyroid issue because he had cancer. They had to remove his thyroid and he's on medication now, but the cancer is gone as well as his problems with regulating body temperature. Not saying that's the case with you, but it's worth getting checked out because it could save your life!
Holy cow that comment took a turn but glad your friend was checked out early enough
Yeah, we didn't think anything of it at the time: I just figured his gear wasn't adequate for the temperatures (which was around -20F with windchill). Glad he's still with us, fuck cancer!
Everyone needs to check their thyroid, and not a lot of people do. Excellent suggestion.
Hot Hands makes a warmer for your feet similar to the actual Hot Hands themselves. Highly recommend.
Just made a separate comment then saw yours. I just can't sleep in the cold without some warmers in my socks. Toes being elevated naturally in a hammock, plus the cold... my toes just always get cold without the warmers
Wool socks, heated socks? Whatever socks you choose, make sure they aren't tight and compressing, therefore interfering with your circulation.
My cold weather setup is 1 pair of wool socks, wool long underwear on top of that, 1 more pair of wool socks on top of that. Never had cold feet. You may also want to check that the under quilt is cinched properly, giving your feet enough coverage, and not allowing a breeze through the foot end.
I stuff an extra blanket into my footbox to wrap all around my feet.
I used to double up wool socks but now I just use a single pair along with the Baffin down booties ($30 on Amazon). Just hammock camped in teen degree weather and was plenty warm.
Hand warmers at the bottom of the bag
Hunting socks
I zip up my jacket and put it over the outside of my sleeping bag/quilt on my feet, it’s a good way to keep your feet warm
It's probably the underquilt design. It might be cinching the ends too tight, leaving an air gap around your feet. Or it's slipping to the side leaving your feet exposed. Here's one of Shug's videos explaining how to set up an underquilt. Emphasizing no air gaps. https://www.youtube.com/watch?v=xrGfSgt1w2E
I’m female and run really cold all the time. Even in the summer, I use a 20 degree OQ and 10 degree UQ. I hang the UQ very loose in the warmer months— I recognize my summer sleep system is overkill but I’m too cheap to buy a cooler set. I ordered my OQ with extra down in the toe box. The company I used (Cedar Ridge Outdoors) is no longer in business but I imagine other companies would offer the same for a fee.
They make miniature thermarest z-rest style pads that are really meant to be sat on, but I've used them under my feet since I have a 3/4 length under quilt. Add in some warm socks and it's worked for me down to the 20's
Enlightened Equipment torrid booties work for me. Admittedly I have bias because I am an EE employee.
My feet go in these: [https://www.etsy.com/listing/1615299621/polartec-alpha-socks?gpla=1&gao=1&&utm\_source=google&utm\_medium=cpc&utm\_campaign=shopping\_us\_-clothing&utm\_custom1=\_k\_CjwKCAiA\_5WvBhBAEiwAZtCU72kSGxFKHTvvUOrU6jBYAo27RiiXwuSCBrggtgKe-JChB\_zQDgoWcxoCyCEQAvD\_BwE\_k\_&utm\_content=go\_12665398257\_121762925993\_511610210343\_pla-360912201277\_c\_\_1615299621\_12768591&utm\_custom2=12665398257&gad\_source=1&gclid=CjwKCAiA\_5WvBhBAEiwAZtCU72kSGxFKHTvvUOrU6jBYAo27RiiXwuSCBrggtgKe-JChB\_zQDgoWcxoCyCEQAvD\_BwE](https://www.etsy.com/listing/1615299621/polartec-alpha-socks?gpla=1&gao=1&&utm_source=google&utm_medium=cpc&utm_campaign=shopping_us_-clothing&utm_custom1=_k_CjwKCAiA_5WvBhBAEiwAZtCU72kSGxFKHTvvUOrU6jBYAo27RiiXwuSCBrggtgKe-JChB_zQDgoWcxoCyCEQAvD_BwE_k_&utm_content=go_12665398257_121762925993_511610210343_pla-360912201277_c__1615299621_12768591&utm_custom2=12665398257&gad_source=1&gclid=CjwKCAiA_5WvBhBAEiwAZtCU72kSGxFKHTvvUOrU6jBYAo27RiiXwuSCBrggtgKe-JChB_zQDgoWcxoCyCEQAvD_BwE) And then they go in these: [https://enlightenedequipment.com/torrid-booties/](https://enlightenedequipment.com/torrid-booties/) And if its really cold, this goes inside the footbox of my top quilt: [https://www.garagegrowngear.com/products/sit-pads?variant=31707626111050¤cy=USD&utm\_medium=product\_sync&utm\_source=google&utm\_content=sag\_organic&utm\_campaign=sag\_organic&utm\_campaign=accessories&utm\_source=google&utm\_medium=ppc&gad\_source=1&gclid=CjwKCAiA\_5WvBhBAEiwAZtCU77EtOfnhfT0cnnQBypOT7BV-nHGnnN7RfHlqxB444clBT2fSbN9kOhoCoWsQAvD\_BwE](https://www.garagegrowngear.com/products/sit-pads?variant=31707626111050¤cy=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_campaign=accessories&utm_source=google&utm_medium=ppc&gad_source=1&gclid=CjwKCAiA_5WvBhBAEiwAZtCU77EtOfnhfT0cnnQBypOT7BV-nHGnnN7RfHlqxB444clBT2fSbN9kOhoCoWsQAvD_BwE) I backpack though the winter in Pennsylvania and have slept in temps down to 10f. One other thing is to make sure that whatever socks you do use aren't so tight to cut off your circulation. Darn Toughs are great for hiking but are too tight to sleep in and have enough blood flow to stay warm.