The Yeti is our 0-degreee capable hammock underquilt for end-gathered hammocks like our Blackbird, Blackbird XLC, and Traveler series, but will also work on just about any end-gathered design. (It will NOT work on our Ridgerunner hammock, for that you need the Lynx)
The Yeti is a torso-length underquilt (40″ wide by 46″ long), covering roughly from shoulders to almost your knees. In addition to the torso length hammock underquilt you’d also use a short leg pad (foam or inflatable) under your legs in cooler weather for a hammock underquilt all the way down to 0-degrees and below. This combination gives you full length coverage. In summer, many users would go without the leg pad.
Note: The Yeti does not have a reversible lay, it is configured for a head left/feet right lay, we can make a reverse lay configuration, but you must order through the custom underquilt page.
The Yeti features a dual differential cut 20 Denier High Threadcount DWR ripstop nylon shell(Durable Water Resistance), and is overstuffed with 850 fill Hyper-Dry DWR goose down which meets RSD certification (Responsible Down Standard).
There are a few benefits to breaking your bottom insulation up into two different components. First, many folks carrying a full length hammock underquilt, especially in 0-degree weather, will generally carry a sit pad for around camp. When the ground is rocky, cold and wet you need something to sit on. You can slightly increase the size of this pad so it’s long enough to insulate your legs from several inches above the knee to the heels, this allows you to cut a lot of the weight and bulk from your hammock underquilt resulting in an overall weight savings of 7-8 ounces compared to a full-length underquilt plus small sit pad. In an emergency, you can stack the Yeti and leg pad on top of each other (the pad would go inside the hammock under your back or between the double layers, never put a pad between the underquilt and the hammock, doing so creates a bad fit resulting in heat loss). So if the temp unexpectedly drops below the rating of your underquilt, you can stack the underquilt and leg pad together adding at least 25 deg of extra warmth to the torso, then you’d just use something make-shift under the legs like your empty pack, raingear, etc. A leg pad can also be useful in a situation where you cannot find any trees and must sleep on the ground, even a 0-degree hammock underquilt is no good as bottom insulation in this type of situation, but you could put your leg pad under your torso and legs on an empty pack and have adequate bottom insulation in a go-to-ground situation.
- Everything needed for attachment
For setup instructions see “Yeti setup” in our video section. For more info on underquilts and links to high quality closed cell foam by the yard check out our “Bottom Insulation 101” section.
Amazing company and products. Excellent customer service.
Jack Green (verified owner) –
The Yeti underquilt keeps me warm, but the shock cord cuts into my side and face. No matter how I position it I can’t get away from the uncomfortable shock cord. I’ve tried using a puffy jacket to pad it and that only works minimally. I wasn’t aware of this design issue when I purchased it, and after researching I found that some people have made modifications to overcome it, although none of the modifications are perfect. I’ve heard other suggestions such as “lay this way or that way so that the shock cord doesn’t bother you so much”, but no matter how I try I can’t lay in a position to get comfortable with the shock cord. I’m seriously considering dumping this underquilt on EBay or even giving it away and purchasing a different underquilt. If I had to do it over again I would not purchase this underquilt, and I am currently researching better underquilt options. That being said, I love my Blackbird hammock, just not the Yeti underquilt.
Jackson Meller –
Slept in my brand new 20 degree last night. Beyond pleased. Suspension system is so easy to use. Just buy the thing.
Otto G. –
I have a Scandinavian Yetti. I have used it from zero to 40° and have never been cold! Packs well and no down has come out yet. Construction (as with all WarBonnet products) is premium for sure! Not sure how long shock cord lasts, but looks simple to replace when the time comes. Easy as pie to set up, adjust and sleep. I have not had any issues with the Yetti moving during sleep, some do. I would definitely like to have more in my collection.
Menkel (verified owner) –
Great craftsmanship and design, I would definitely recommend this product.
Nathan Goodling (verified owner) –
Ordered the brown one, it’s looks great on the XLC, more importantly, mine fits like a dream. Flawless work, great piece. Personally I find a lot more comfortable than my Therm-a-Rest for hammocking.
Yngvar Kristiansen –
Summary: I find it’s very hard to not freeze in this, although I have managed it one time.
Facts: I’m using this together with the Blackbird XLC. I’m 177cm (5′ 10″) and 71kg (156 lbs).
I have been using the Yeti for 5 different trips, and I was freezing 4 of those 5 trips. The temperatures have been between in the range 12 to 0 C (or 10.4F to 32F) (Norway).
In the start, just no matter how I adjusted the Yeti during the night, I got super cold on my butt and back.
Seeing as other underquilts have tightening mechanisms, I tried to tighten up the Yeti myself using a long shock cord. I tied it on each of the 4 corners of the Yeti (difficult to explain without drawing), and then to the hammock rope/string above me – and this actually made two nights -7C/19F comfortable! However, the Yeti does just now work the way it’s shipped. If I have do my own modifications to make it work, it’s bad at that price tag. It was a hazzle with the shock cord knots.
Last weekend, I adjusted this shock cord a bit with a bit simpler setup (with shock cords and clamps), but it failed, and I had another cold, uncomfortable night. I am about to give up on this thing, which is sad, because it was really expensive.
admin (verified owner) –
The Shockcord on the Yeti should be nearly stretched to the max, especially if being used on an XLC, so there shouldn’t be any looseness there to tighten.
The temp ratings are for an average sleeper, a cold sleeper would/should fall short of them, but they also assume the following: You are blocking all the wind with a tarp or sock, the quilt has been adequately fluffed so the down is evenly distributed and there are no dead spots from the down shifting during stuffing/unstuffing, you have adequate topside insulation including a warm hat, You’re using a pad for the legs in cold weather… If you got super cold on your back/butt this suggests something wasn’t right, if the quilt is used properly AND you are near the temp limit, the cold should come on very slowly and be sort of a subtle dull cool feeling, if it was a quick intense cold this suggests other things might have been going on causing a poor fit. You’d want to watch/re-watch the Yeti setup video to ensure that the quilt wasn’t loose/gapping at the head or foot end due to the way it was installed.
Chad Sander (verified owner) –
Packs small and super easy to install. I personally have problems keeping it in position. Seems to creep up one side or the other depending on how I move. Tested at 28 degrees f and woke up a couple of times cold. After repositioning it instantly warmed back up.
C Wilson (verified owner) –
I tried to make a pad work and that just didn’t happen. I wanted an UQ but was concerned about the warmth of the 3/4 length 20 degree Yeti. Using it last night in a 40 degree night, I was warm, but the comfort level was through the roof. The lie was better, and I didn’t think that could be improved.
No cold spots anywhere and I had feared that. I’ll be prepared for that possibility in lower temps, but it’s surprising not to need more coverage already. Talk about exceeding expectations.
As a woman in her early 60’s embarking on an AT hike soon, I must have lightweight and effective gear. I’m grateful for this UQ.
Sorry, one more clothing item to add to my review– A Mountain Hardwear fleece pullover. Don’t want anyone to freeze!
I have had the 3-season Yeti UQ (and Mamba TQ) down to 25F, wearing a thin Merino base layer, thin coolmax tights, REI convertible pants, smartwool socks, and a fleece beanie. I was comfortable at that temp, though not super warm. I think the Mamba and Yeti performed excellently and close to the 20F specification. With thicker clothes I could have easily gone to 20F or lower.
The quality of materials and construction are outstanding. I am very happy with both the TQ and UQ.
Neil Denton –
Got my 20 degree Yeti just in time for my trip along the Appalachian Trail (Thanks Ryan for making sure this happened!). My first surprise was when I lifted the box… I though it was empty LOL. The Yeti barely weighs anything at all!
A couple days later I got to experience hammocking without having to use a sleeping pad for insulation for the first time and it was wonderful!
The temps got down into the lower 20’s, to high teens and I was never cold. I didn’t have to fiddle with the sleeping pad to make sure that it wasn’t over inflated, or under inflated. I didn’t have to worry about rolling off the pad or having my arms being cold because they overlapped the edge of the pad.
This is what hammock camping is supposed to be about.
Mike Dannheim –
Simple to hang, simple to adjust, comfortable down to the freezing point.
I am 5’11 and use this with my Blackbird XLC hammock. It is just the right length to cover from my shoulders down just below my torso. There is a noticeable difference in warmth with and without the Yeti underneath. Also if you get too warm you can slide it up a little to let some of the heat out.
I am new to under/top quilts, and so far have been very impressed and happy with the Yeti and Mamba combo that I purchased. The Yeti is easy to set up, adjust, light, compact, and warm. Looking forward to many years of use with my new WB system.
M. Ball –
I was about to give up on hammock backpacking because of the frustrations of trying to use a pad inside. I finally ordered the Yeti, and it has made all the difference. It hugs the under-side of the hammock and provides warmth while allowing me to shift my position inside. The workmanship of the quilt is excellent and the design well thought-out. The Yeti is my new best friend!!
This thing is so cool! I love that it’s adjustable. I tried it for three nights this last week and it was great. While it wasn’t really cold, it worked well in the upper 40s and I’m confident it can be used at much cooler temps. It’s really amazing the difference you feel when it’s pushed aside vs when it’s under you. Plus, I like that I can control how warm I am just by moving it up higher. Worth every dime, can’t wait to use it again next week.
After freezing on the July 4th weekend in my blackbird I ordered a Yeti 3 season. I’d received it just in time for my next trip and boy was I glad. Not only did I not have to worry about my pad shifting around, but it was so easy to set up and I stayed toasty warm.
I bought a BB, MJ tarp and Yeti underquilt.
Just returned from a 7 day trip in the High Sierra
having never hammock backpacked before.
The star of the show was the Yeti underquilt
which made my nights toasty. I’d hang the hammock
and adjust the yeti under it, string the tarp,
throw my down sleeping (top) quilt in along
with other incidentals onto the shelf
and a small piece of pad to insulate my legs,
slip into my hammock and feel the warmth
after a long day of hiking.
I’m no gram counter,, but I do consider weight in every decision I make. As I transitioned from ground to hammock, I compared sleeping bag weight to Top Quilt – Under Quilt wights, as well as temp ratings. The Yeti is the lightest on the market. What I was not prepared for was the thoughtful design and unique characteristics of the Yeti. It is asymetrical with the left corner curved differently so that it better matches the left shoulder and “rides” better under the body, at an angle, in the hammock. This is just one example of the craftsmanship that Brandon is know for. Many questioned the 2/3rd length; however, the same hikers never really worry about long pants in the cold and wear shorts. The Yeti is the perfect length and the savings in weight is tremendous. The bottom of the quilt reaches the back of my knees and again, “Rides” extremely well. Warbonnet Comfort, workmanship, and field service are winners!
My friends and I got into hammock camping about a year ago, and one by one we have been spending the money to get underquilts. I have seen the Jacks R Better underquilt as well as hammock gear’s and still made the decision to go with the Yeti. I wanted to see if I could manage with the 2/3 length quilt for 3 season before I invested in a winter Yeti. I was skeptical of the coverage as I am 6ft tall and weigh 240lbs. When the Yeti arrived I was very impressed with the look of it – it fluffed up beyond what I had expected after I followed the instructions sent with the quilt. The stuff sack is perfect for this quilt and is the same size as a nalgene, but a little bit longer.
Last weekend I tried the Yeti for the first time. I have a Warbonnet Blackbird XLC with Whoopies, a cheap EMS 20 degree 600 fill down sleeping bag, and a thin ground pad that came with my Mountain Hardwear Summit Rocket pack. I spent one night with this setup – I used my bag as a top quilt, the pad extended from my lower back to the tip of me feet, and the Yeti. I have a wilderness Logics Tadpole tarp that I did not pitch low, so wind was getting under the hammock, and the temp went down to 33 degrees (actual temp). I was very warm and comfortable with this setup even with the wind going under my hammock. This leads me to believe that if I had the yeti 0 degree and the accompanying top quilt I would be fine in much colder temps. I am sure I could have gone even colder with the 3-season yeti.
Overall I am very happy I went with the Yeti over other options – I am weight and space conscious and have seen what larger quilts take up in the pack. For the space and weight I feel like I am not even sacrificing anything with the smaller quilt. – I highly recommend the 3 season Yeti for anyone who is unsure or skeptical of the 2/3 length quilt.
Just got done camping in 20 degrees F and in a sleet storm and I was snug as a bug other than my head but that’s what hats are for. This compared to hammocking without an under quilt is night and day and it is so easy to attach and adjust if needed! Cannot wait to go back out and not having to fear freezing to death.
Hung out on the river last weekend using my WBBB, 3 season UQ and 3 season regular TQ. Got down to 18 degrees and the wind blowing like crazy all night. I was wearing wool socks, firehose canvas pants, pull over sweatshirt with wool Boreal shirt, down cap and stayed warm all night. Could have been comfortable in even lower temperature if the wind hadnt blown. TQ is plenty long for 6′, 210lb frame. WBBB is exceptional. Great gear. Worth the money.
Kyle Milligan –
First cold weather camping trip and perfect opportunity to test the Yeti. Cozy and easy to adjust. No chance of CBS even with the high winds. Stayed tight to the body and never slipped out of position once. Craftsmanship is superb. There is nothing I would change. Keep up the good work!!
Andrew N. –
Worked Great! perfect no… but i would say that user error is an issue. I am new to hammock camping and camping altogether.
my technique for positioning is not adequate while in my hammock but if i hang my hammock correctly i can get it right before entry. I would like it if the shock cord bound less in the channels. could be the cold.
The shock cord froze over night and I had to warm it with my hands to get it to contract but even then it was resistant. the shock cord on my hammock (xlc backbird) seemed fine.
The DWR is only good for Humidity. I have noticed no issues with perspiration. if you where in a situation that rain could get to your yeti it will absorb water. you can smell the down as the humidity rises.
My favorite part about the size is that its very easy to fluff out when setting up camp. i dont feel like i will hit any thing with it or drag it on the ground getting it dirty or ripped.
I’m Confident that I can sleep in negative degrees. thanks to my WB gear.
I transitioned to hammock camping about 3 years ago. It was so great for my back. Since that time, I have always used my old neolite air pad for bottom insulation. It worked fine…except I would get cols spots on the sides and where my feet always pushed against the side of the hammock.
I have looked into under quilts for awhile now, but I was put off by all the perceived complications.
– under quilt clips, hooks and innumerable other weird mounting contraptions
– cold spots
– tightening shock cords under your legs or head to close out drafts
– extra weight
– full length or 3\4
…and on and on…
well…I have been 100% converted!
I received the Yeti 3-season quilt as a Christmas gift 😉 from my wife. The first time I went to set it up, I was anxious. I was done and in the hammock in about 30 seconds. Shock cord with knot around the head-on of the hammock, other end of shock cord around the other end. Shove hammock inside the now suspended under quilt and jump in. Pull it up to the top of your shoulders and wait about 15 seconds…ahh, toasty warm. Absolutely toasty warm at 26 degrees with a 20 degree top quilt and 1/8 in reflection pad under my legs inside the top quilt.
Overall, I am incredibly excited about the switch to an under quilt.
– very warm
– improves the lay of the hammock greatly over my pad
– 3/4 versus full is a personal decision, but I am very happy with it
– not as complicated as I had assumed…adjusting to “fit” properly is instinctual…you really don’t need rules or a guide. Your body tells you where to make changes and when.
Why do I rate this particular product so high?
– the setup CANNOT be made simpler or easier. No clips or anything…AWESOME!
– the elastic ends snug up to your neck and legs perfectly…no cinch buckles or extra bungee cords or straps over the hammock.
– the 3-season is a great balance of temperature range. I have been in it from 65 degrees to high 20’s with no issue. I have only needed to vent the top quilt to control how hot it gets. Going to try the low teens tonight…we will see how that goes.
– I was worried about the weight. Mine was at 13.2 oz first thing in the morning. I assume that included some condensation from the night before. This actually reduces my load by 6 oz as compared to my pad.
– the quality is great…the stitching is nice. The fabrics feel wonderful.
Overall, I couldn’t be more pleased. If you are a pad user on the fence, fear not. Sleeping on an under quilt is more comfortable and easy to set up. I loath being without the pad if I have to go to ground, but I’ll cross that bridge when I come to it. When you finally decide to go with an under quilt, I can’t recommend the Yeti enough. The combination of the ease of use, weight and price can’t be beat.
Thanks you, Warbonnet!
I have been trying different ways to stay nice and warm while in the hammock and this is the way! It’s light and helped me have the best sleep in a hammock yet! I’ll recommend this underquilt every time!
I paired the standard length 20 degree Yeti with the WBBB XLC 1.1 double for a fall 5 day hike in the Bitteroots with temps down to the low 40’s at night. Overall quality was top notch, it fit the XLC like a glove and would be quite capable of keeping me comfortable well below 20 degrees. Setup and installation were quick and easy and positioning was not an issue with the continuous shock corded attachment line. I was able to easily move the UQ to achieve optimum positioning. I am very happy with the Yeti UQ and highly recommend it.
Bill (Pi) Murphy –
Got a 3-season-yeti with an extra oz of “overfill”. I don’t quite know how cold the lowest temps were, I slept fine all night and saw frost in the shadows still the next day at 10am, so must have been pretty cold at night.
Good product, light, very compressible.
A little more down leak of stray feathers than other quits and sleeping bags I’ve had before, but nothing I’m concerned about. Would have to leak 10 fluffs per week for a long time before the down started to run out.
I would buy this again without hesitation.
admin (verified owner) –
We’ve since upgraded our quilt fabric to a higher threadcount to solve this issue
Paul Shepherd –
I graduated from a make-shift UQ (made from a non-down sleeping bag). I had the opportunity to use this UQ in 14C windy weather and it performed very well. My torso was so toasty warm, it made my lower legs feel colder than normal. No problem, I used a closed cell foam pad and problem was solved. I really like the size, weight, and performance of this UQ. The quality is excellent.
A hammock is not complete until you have an underquilt, and this one is amazing. Takes about 10 seconds to put on/take off, and is instantly warm. Spent three nights with high wind and rain, and was warm as toast. The first night my friend was up all night running a fire, because he was a freezing “ground dweller” while I was so warm and toasty in my hammock that it did not even occur to me that he was cold.
Buy one, it is worth it.
I am rating this as Four Stars only because I haven’t had the opportunity to use it on an overnight outing yet. However, I give the craftsmanship, quality, and customer service five stars. I have tries the UQ in the backyard for a few minutes set it up and get a feel for how it works. If the UQ works all night like it did for those few minutes in the backyard, it’s see ya cold bottom syndrome and even better sleeping. Thanks Brandon for another stellar product.
The craftsmanship is impecable. It lives up to all the reviews I read about it. I can’t wait to try it out on an over night trip. But just throwing it on as I was testing it the day I got it, I could feel a huge difference with the quilt. I’ve never been more excited over a piece of new gear.
Very light and compressible but warm. It was 38* when I used it so maybe not a great test but I’m happy with it
I was a bit skeptical that a 3/4 quilt would keep me warm but a friend recommended it and I was very pleased. I use a small gossamer gear pad for my feet and I stay toasty all night. Packs down super small great for gram weenies like me.
Great UQ!! That’s all I need to really say about the Yeti! Top notch quality for a top notch hang!!!
Since I purchased my Blackbird I have been using my BA sleeping pad and to be honest I hadn’t had a decent nights sleep in my hammock yet. I can contribute this to the small air leak I have in my pad that I couldn’t find after submerging it in water. I would get cold butt and then I would have to wake up and blow air in the pad only to have to do it again god knows how long later. That was the last straw and I decided to fork over the $200 and fully commit to the hammock. By god that was the best decision I have ever made! Used it last night in sub 40 degree weather with wind and I wasn’t cold one second! I used a vapor barrier in which I climbed inside and used my summer bag as a blanket over me and I was toasty all night (I was wearing long johns, Patagonia nano puff hoodie, and a wool long sleeve base layer, with a light foam pad from my calves to feet underneath).
Bottom line: Don’t half ass this! Get an underquilt with your hammock!
Johnny Isaak –
My initial impression of the Yeti Under Quilt is that it’s a quality piece of gear that will make an excellent addition to my Blackbird hammock for hangs when the mercury starts to dip in late fall and early spring. The quilt is constructed of high quality DWR ripstop shell and 850 fill goose down. It’s apparent that true craftsman assembled the piece of kit as there is exceptional attention to detail on every feature.
I’ve had the Yeti out on two hangs since its purchase, where both the Blackbird and the Yeti performed well in temperatures down to 23 degrees without issue. As a recent convert from tent camping, I’m really please with their ability to keep me warm and comfortable in cold weather.
Warbonnet’s service was prompt, shipping my under quilt when promised and my purchase was problem free. Prior to buying, I did a lot of research online regarding hammocks and under quilts and Warbonnet products wear always at the top of the list and highly recommended.
I’m really pleased with my recent purchase of both a Blackbird hammock and now the Yeti under quilt. They’re not cheap, but you get what you pay for. For me, my money was well spent and I look forward to many years of long distance bicycle trekking and camping through Asia with my Blackbird/Yeti kit.
If you are considering purchasing a Warbonnet product, buy with confidence. Warbonnet does not disappoint.
Brad Galles –
I’ve been out camping a few times with my warbonnet blackbird hammock and the wind chill on my back always kept me from sleeping. The hammock is super comfortable but the wind chill will ruin the experience. I finally was able to spend the money for the underquilt and it was well worth it! I went out recently to try it out in 10 degree weather while it was snowing and it worked perfectly! My body from my knees to my head was perfectly warm. Now I just have to figure out a way to keep my feet and toes warm! I’m very happy I made this purchase. It’s very lightweight and doesn’t take up too much space in my pack. It really is a must have for hammock camping. I purchased the multi cam winter yeti because I like to camp in all conditions so I like to be prepared. Plus I love camo 🙂
I own the multicam hamock and lower and upper quilt good for 0 degrees. Blends in very nice in the wilderness. When I close my eyes I like to know I am not easy to see. A bit more weight but it makes me feel safer. 110% worth every dime