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Experience the ultimate in comfort and versatility with our hybrid mummy sleeping bags. Designed to provide warmth and insulation without sacrificing mobility, these sleeping bags feature a unique blend of materials for optimal performance. Lightweight and compact, they are perfect for backpacking, camping, or any outdoor adventure. With a snug fit that retains heat while allowing for easy movement, you can enjoy restful nights under the stars. Explore our collection to find the ideal hybrid mummy sleeping bag for your next expedition.
$99.99
WAS: $129.99*
Was looking for a quality no frills synthetic backpacking bag and thats what I got. ... Exactly what I expected ... Ordered the 20 degree version for my wife and it's the same great quality and accurately rated as temperature goes, but you will probably need to compress the women's version to...
5
Rak
Was looking for a quality no frills synthetic backpacking bag and thats what I got. Light and packs very small( without the need for compression) for a synthetic bag. Tested it in the low 40s and have no doubt it will go to freezing comfortably. Ordered the 20 degree version for my wife and it's the same great quality and accurately rated as temperature goes, but you will probably need to compress the women's version to consider it packable. We are very happy with these bags.
$129.99
I stayed toasty warm sleeping in 20°. ... Super
5
Jake Moon
I bought this for cold weather camping, obviously. I stayed toasty warm sleeping in 20°.
$54.99
The relaxed mummy shape is perfect. ... The bag is perfect for the spring or fall as it offers just the right amount of warmth. ... It kept me from feeling the cold wind at the track and soccer
5
Stacy
When i got this sleeping bag delivered, first thing i noticed was how compact it was and the strap to carry it. i then rolled the sleeping bag onto the floor and got into it, it was easy to zip up and a good fit for an adult. i will purchase another soon, really like it for the price.
5
Nicole
Adult hybrid 30 sleeping bag is a great bag at a very reasonable price point. The relaxed mummy shape is perfect. The bag is very warm yet lightweight and the two way zipper allows you to let your feet out if needed for cooling. Love the fabric and the gorgeous teal color of the bag. What stood out was that it was not very noisy as some bags of this material are noisy. At 5 ’ 8 ” this bag was perfect for my height. Any taller though and you would be completely filling the hood to foot of the bag! A nice little extra is the little Velcro top pocket inside for keys or anything valuable. I also liked the extra feature of the clip on cover for the top of the bag to prevent dirt or water getting into the drawstring carry bag. This bag is perfect for our family camping trips and Cub Scout camp outs!
5
Winter
This sleeping bag is great! The material is soft and comfortable. I like the inner pocket! The color is nice and it's a good value. It's also packable so it saves space! The bag is perfect for the spring or fall as it offers just the right amount of warmth.
5
Ron m
We have a similar LL bean sleeping bag and this matches the color perfect so we can match when we go snowmobiling. It is also the same degrees and we tried it the other day for fun outside. It kept warm.
5
Chris
I am somewhere between car camper and hiker. It serves both purposes. I wouldnt use it in our colorado winters but other than that ill make this my primary bag. Really happy with weight and comfort. Would recommend
$129.00
Comfy, not overly warm. ... Keeps me very toasty even as the temperature rating is being tested. ... Comfortable. ... Sleeps comfortably in all conditions, my evening in the upper 30 ’s I stayed toasty and
5
Ronin
I bought this bag as a Christmas gift for my son. It is fantastic. I love the different features it has. Such as the dual zipper, the little stash pouch for your head lamp or flashlight, and the material. My son now only wants to sleep in the sleeping bag instead of his bed.
5
Rustle
[ its been just about everywhere and has done its job well everytime. When I feel a little lonesome for the trail I open it up at home. even came with a compression sack
5
Brownie12
[[ Employee of marmot] 1 years ago I bought I ’ ve used twice both times very warm and great sizing in 5. 9
5
Popasurf
[ Bought this about a month or two back, have used it on three over night trips now... Sleeps comfortably in all conditions, my evening in the upper 30 ’s I stayed toasty and warm. And this past weekend in the 60 ’s, I wasn ’ t too hot. Rather perfect temperature in each sleep. Highly suggest the bag at this price point.
5
AronSea
[ Great bag! Lightweight comfy and packs down good. I bought as a summer bag for multiple backpacking trips in the cascades and it worked out perfect.
$129.00
This sleeping bag kept me warm all night and slept very well! ... I am 5 ’ 6 ” and 120L and had no issues with being cold in temps around 35- 40°. ... It is pretty light so it ’s easy to carry into the camp
5
NJA Nomad
This is the 5th Trestles I 've bought for my family. It's just the right compromise on weight, warmth, and cost for high alpine trips into the Beartooth Mountains. All of them have been used in expedition weight tents, so they have been easily warm enough. This year I bought a Marmot Force ultralight backpacking tent and put my Trestles to the test of its limits. It performed admirably even with the drafty nature of ultralight tents. We had a couple of windy nights down into the 30's, which get a laugh from expedition weight 4- season tents, but I mummy'ed up in my Trestles 15 and was amazed at the comfort, roominess, and functionality!! I would n't still be buying them and on number 5 if it were n't for the great performance.
5
John S
Perfect sleeping bag for those colder late season overnight hikes!
5
Zoe1
GREAT bag. I 've had for nearly two years now and still like new. I 've use it with my ultralight three season tent in- 20 and- 10 truly testing the limits but always feel warm and cozy. My only issue is it does n't pack as small as I 'd like for multiday trips, but purchasing a compression bag helps. Overall, beyond amazing for the price.
5
Marmot Customer
My roommate and I each bought this sleeping bag for a camping trip in the Upper Peninsula in September. Temperatures dropped to the low 30's and we stayed very warm and dry. Very compact, convenient pockets for phones/small belongings, full zippers. We both highly recommend!
5
Johns
Bought this just before a trip out to Washington in the fall. I am 5 ’ 6 ” and 120L and had no issues with being cold in temps around 35- 40°. Also the bag was plenty long for me with still about 2- 3 ” of room to spare( I bought the regular length bag). I did try this bag out when the temp was right around 30° and did get a little chilly( could have probably been fixed if I had a liner to go with the bag). I do wish it could compress just a little more but it does have a nice compression bag that comes with it. I would definitely recommend this to anyone looking for a cooler weather bag for a good value!!
$129.00-$139.00
I am not normally a fan of mummy bags, but this one I love. ... Really comfortable and long enough for me which is sometimes hard to find in a ladies sleeping
5
Sade
Super great! Really comfortable and long enough for me which is sometimes hard to find in a ladies sleeping bag!
5
Noodle
Have n't tested this bag is 15 degrees yet but it was so cozy at 30 without having to layer up to sleep. This is my first time purchasing a women's sleeping bag and I am so so happy with the fit! Not really long past my feet so they stay warmer and it's a little roomier in the hips so I did n't get too tangled up. Does n't pack quite as small as other bags I 've seen, but ca n't beat it for the price! Love this bag!
5
zjfang
There is a typo “ wsash ” in the hangtag. Everything else was perfect, but it might be too warm for summer. For those looking for summer bags you might wan na try higher degree bags.
5
Scout mom 36
[ I bought this sleeping bag a little over a month ago and have used it on two camping trips so far. I am not normally a fan of mummy bags, but this one I love. It has extra padding in the foot box and i love how the top keeps my pillow in place. Only downside is I wish it packed down smaller, but for a non down sleeping bag theres not a way to do that without compromising temp rating. I normally roll my sleeping bags and stick them into their stuff sack. This one i found works best if you stuff it head first into the stuff sack it comes in and then sinch it down smaller. I am 5' 7 1/2 '' and fit in the long perfectly with plenty of room to spare.
5
Alex95
Nice sleeping bag, comfortable around 25F wearing just the base layer.
$99.00
I 've camped> 40 nights in this bag in temperatures it is rated for ~40* F and it was perfect with just underwear on. ... Nice and warm, easy to pack and light weight for the
5
Kotter42
I 've camped> 40 nights in this bag in temperatures it is rated for ~40* F and it was perfect with just underwear on... I added a liner when it got down to 25*, but the bag performs well alone. I like the zippered footbox because my feet sweat
5
LeiLalah
I bought this for my daughter ’s school camping trip for the the last week of April so it was still relatively cold at night and early morning hours in the mountains of California. We love the north face brand for our outerwear so I splurged a little on getting our daughter a good quality sleeping bag and this definitely did not disappoint!
5
Ronnie 44420
Nice and warm, easy to pack and light weight for the warmth.
5
Amela
Small, light and amazing color. Scout can haul it easily.
5
Amelia
This is so light weight. My scout needed something small for summer camp and this was perfect. The color is bright!
$109.00
Kept me warm on a recent camping trip in March in Idaho. ... Very comfortable and soft. ... [ Light and small pack, suitable for all kinds of travel and weather, high quality
5
Rlon
This is keeping me very warm and it is freezing outside. Very good sleeping bag!
5
Rick615
Bought this for baseball in Chicago in Feb…worked as advertised. Warm in 36 deg weather
5
Zionb
Kept me warm on a recent camping trip in March in Idaho.
5
Sherry
I just used my new north face sleeping bag and it was warm and cozy. I love it. Very comfortable and soft. ❤️ Great in everyway!
5
Yuval
[ Light and small pack, suitable for all kinds of travel and weather, high quality materials
$679.99
[ This is an amazing ultra light weight sleeping bag. ... Extremely comfortable and warm especially with how light it is. ... Easy to repack ... Best option for slipping
5
colet6
[ I do think this is one of the few comfy sleeping bags that I have had before in my life and the packaging was incredible to be able to move this easily so quickly.
5
bradt3
[ I received this product complimentary from Influenster and Sea to Summit. Spark may be the right bag for you. Filled with RDS- certified 850+ fillpower goose down treated with a non- PFC Ultra- Dry Down treatment, the Spark is constructed with a technical hood Extremely nice sleeping bag will definitely keep me warm during the cold winter months while outdoors.
5
editap1
[ This sleeping bag is the best that I ’ ve ever tried. It is very lightweight but super warm. I like how easy it is to pack it up. It fits nicely in its own carrying bag, but it can be pressed even more to fit it in an even smaller space. There ’s plenty of room inside, but it is not so big that it wouldn ’ t function properly. It is very comfortable and easy to zip into it. Even my dog was obsessed with it when I first unpacked it 
5
gilthoniel00
[ This sleeping bag is absolutely amazing. It is super light to carry( brings a bag to carry in it). Also, it is so soft and warm. This will be great use for our upcoming camping trip. I ’ m so excited about sleeping in it. I ’ m 5 ’ 4 for reference and this is a regular size one. It fits perfectly and still has plenty of legroom.
5
jessicas1036
[ Received free for my honest opinion. Love it. Beautiful bright colors. Comfortable. Light weight. Easy to compact. Definitely warm. It ’s going on our next trip for sure.
$579.00
WAS: $579.99*
Easy to compact. ... It fits nicely in its own carrying bag, but it can be pressed even more to fit it in an even smaller space. ... It came with a small stuff pack which fits in it nicely and the straps pull it snug to make it more
5
colet6
[ I do think this is one of the few comfy sleeping bags that I have had before in my life and the packaging was incredible to be able to move this easily so quickly.
5
bradt3
[ I received this product complimentary from Influenster and Sea to Summit. Spark may be the right bag for you. Filled with RDS- certified 850+ fillpower goose down treated with a non- PFC Ultra- Dry Down treatment, the Spark is constructed with a technical hood Extremely nice sleeping bag will definitely keep me warm during the cold winter months while outdoors.
5
editap1
[ This sleeping bag is the best that I ’ ve ever tried. It is very lightweight but super warm. I like how easy it is to pack it up. It fits nicely in its own carrying bag, but it can be pressed even more to fit it in an even smaller space. There ’s plenty of room inside, but it is not so big that it wouldn ’ t function properly. It is very comfortable and easy to zip into it. Even my dog was obsessed with it when I first unpacked it 
5
gilthoniel00
[ This sleeping bag is absolutely amazing. It is super light to carry( brings a bag to carry in it). Also, it is so soft and warm. This will be great use for our upcoming camping trip. I ’ m so excited about sleeping in it. I ’ m 5 ’ 4 for reference and this is a regular size one. It fits perfectly and still has plenty of legroom.
5
jessicas1036
[ Received free for my honest opinion. Love it. Beautiful bright colors. Comfortable. Light weight. Easy to compact. Definitely warm. It ’s going on our next trip for sure.
$579.99
I just can ’ t wait to use my new spark down sleeping bag for women by sea to summit. ... It is so warm and comfortable. ... It saves a lot of space in a backpack or
5
heatherw539
[ This sleeping bag is amazing! It is extremely warm and will keep you toasty on those cold nights outdoors. It fit me perfect with some extra room with a height of 5ft. It is on the larger side and they give a small bag to pack it in which is very difficult to get it in. They also include testing results on the down goose and duck feathers they use to insulate it. Definitely worth the buy!
5
elizabethr1983
[ This sleeping bag is the real deal! Let me tell you, I ’ ve put it through the wringer on a bunch of camping trips, and it's come out on top every single time. The durability of this thing is seriously impressive. I ’ ve treated it pretty rough, tossing it around, stuffing it into tight spots, and it still looks and performs like it ’s fresh out of the box. And let's talk about comfort. Oh boy, this bag is next- level cozy. I ’ m talking about sinking into a plush cloud kind of comfort. It ’s like a warm hug after a long day of hiking. I ’ m usually tossing and turning when I ’ m camping, but not with this bad boy. I slept like a log, no kidding. It fit me wonderfully! Now, let ’s get into packability. This is where this bag really shines. I ’ m all about saving space, especially when I ’ m packing for a camping trip. And let me tell you, this bag packs down like a dream. It squishes down nice and small, taking up hardly any room in my pack. It ’s a game- changer for sure. And the insulation? It ’s top- notch. I ’ ve used this bag in all kinds of weather conditions, from chilly nights to downright freezing ones, and it ’s never let me down. I ’ m talking about staying warm and cozy even when the temperature drops below freezing. No need for extra layers or anything like that. Overall, if you ’ re in the market for a sleeping bag that ticks all the boxes, this one ’s a winner. It ’s durable as heck, ridiculously comfortable, packs up like a champ, and keeps you warm when it matters most. Trust me, you won ’ t regret it
5
zarachristine
[ This sleeping bag is amazing! It ’s so soft and lightweight so very easy to hike/backpack/camp with. Despite being so lightweight the dense down feather inside of it allows for a lot of warmth! I love how it hugs my body perfectly keeping me nice and insulated.
5
deborahc70
[ This sleeping bag is incredibly light! It shrinks down so much. It easily fits in my backpack. It is so warm and comfortable. I love that I still have room to comfortably sleep.
5
shawnam87
[ I was sent this product in return for giving my honest opinion about it. The Sea to Summit Spark sleeping bag is a lightweight and compact sleeping bag that would be perfect for backpacking because it is so light. It has down insulation for warmth. I like that it has a hood it makes me feel covered really well. When I tried it out it wasn ’ t very cold but after a few minutes I was sweating so I could see how this would be great in very cold conditions.
$44.99
My daughter loves her new sleeping bag- curled up in it& wanted to sleep in it the day we got it. ... Warm/comfy sleeping bag ... This youth size sleeping bag is
5
Swboni
This is a well made mummy style sleeping bag. Comfortable and warm for moderately cold nights. Would recommend for children or small adults 5 ’ 5 ” or under. Compacts well for travel and breaks down much smaller than aniticipated. Would highly recommend.
5
Nice cut off shirt
My daughter loves her new sleeping bag- curled up in it& wanted to sleep in it the day we got it. She said it's warm and comfortable. She's looking forward to taking it for sleepovers. My wife will probably also use it to take to cold sporting events instead of a blanket. Great sleeping bag!
5
Grove
The Cypress Mummy Bag is a great little sleeping bag for kids. We 've had it camping, and it was taken on a sleepover. It worked great for both. It is a youth size, so only comfortable for kids, I would guess 11 or younger? Highly recommended if you 're looking for a sleeping bag for your young one.
5
KaKip3
This is a great quality sleeping bag. Fits my 10 year old perfectly and I can even get in it and I ’ m 5 ’ 5 ” but I would say that ’s the max. Warm thick material Without being heavy. Love the internal pocket with Velcro closure. Very easy to roll up and planet of room in the bag to fit it back in. Love the contrast colors. The zipper works well and doesn ’ t stick.
5
Cody
My son loves the Quest youth sleeping bag. He has used it on 2 sleep overs and loves using it watching TV. Very warm and comfortable. Our Golden Retriever try ’s to use it as much as possible 😉 I would recommend to everyone.
Hybrid mummy sleeping bags combine the advantages of both traditional mummy and rectangular sleeping bags, offering enhanced warmth and comfort. They typically feature a tapered design that reduces weight while maintaining insulation efficiency. This makes them ideal for backpacking and camping in various weather conditions.
Hybrid mummy sleeping bags often utilize a combination of synthetic and down insulation materials. Synthetic fills provide moisture resistance and durability, while down insulation offers excellent warmth-to-weight ratios. The outer fabric is usually designed to be water-resistant and breathable, ensuring comfort during outdoor activities.
Hybrid mummy sleeping bags are versatile and can be suitable for various seasons, depending on their insulation rating. Many are designed for three-season use, providing adequate warmth for spring, summer, and fall camping. However, for winter conditions, it's essential to choose a bag with a lower temperature rating to ensure adequate insulation.
When selecting a hybrid mummy sleeping bag, consider the lowest temperature you expect to encounter during your outdoor activities. Look for bags with temperature ratings that match your comfort needs, factoring in personal preferences and layering options. It's often recommended to choose a bag rated for slightly lower temperatures than you anticipate to ensure warmth.
Hybrid mummy sleeping bags often feature improved design elements such as more spacious foot boxes and additional insulation in key areas, enhancing overall comfort. The combination of materials used also contributes to a softer feel against the skin, while maintaining warmth. Many models include adjustable hoods and draft collars to personalize fit and reduce heat loss.
Yes, hybrid mummy sleeping bags are an excellent choice for backpacking due to their lightweight design and compact packability. Their efficient insulation allows for warmth without excessive bulk, making them easy to carry. Additionally, their versatility makes them suitable for various weather conditions encountered on the trail.
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