7 Best Lightweight Summer Sleeping Bags in 2021

7 Best Lightweight Summer Sleeping Bags in 2021

Table of Contents

    Summer is easily the best season to hit the campgrounds. You’re always likely to post up in a survivable temperature, you don’t have to plan around the sky falling or the ground freezing. It’s the season of cool lakes and refreshing sweats.

    Even though the summer air is accommodating, it’s still nice to have a good sleeping bag for when the temperature drops and you’re ready to start settling in for the night. A good summer sleeping bag is comfortable, breathable, and ready to stave off late summer morning dew. If you’re on the lookout for the best summer bags, we’ve got them all right here for you!

    In a hurry? Here’s the test winner after 10 hours of research:

    Overview
    Marmot Always Summer Down Sleeping Bag
    Title
    Marmot Always Summer Sleeping Bag
    Price
    $201.95
    Rating
    ⭐⭐⭐⭐⭐
    Overview
    Marmot Always Summer Down Sleeping Bag
    Title
    Marmot Always Summer Sleeping Bag
    Price
    $201.95
    Rating
    ⭐⭐⭐⭐⭐

    Best Lightweight Summer Sleeping Bags - Overview

    Here are the top 5 picks (keep scrolling for picks 6-7).

    Overview
    Marmot Always Summer Down Sleeping Bag
    Ohuhu Warm Weather Sleeping bag 3 Season Lightweight Portable Sleeping bags Adult Kids Backpacking Sleeping bag with Carry Bag for Camping, Hiking, Backpacking and Outdoors 59℉-77℉
    Nemo Disco Womens 30 Long (Celestial/Moonglade)
    Kelty Cosmic 40 Down Sleeping Bag – 550 Fill Down Backpacking Sleeping Bag, 2021, Regular
    Coleman Green Valley Cool Weather Adult Sleeping Bag
    Title
    Marmot Always Summer Sleeping Bag
    Ohuhu Summer Sleeping Bag
    Nemo Disco Insulated Down Sleeping Bag
    Kelty Cosmic 40 Degree Down Sleeping Bag
    Coleman Green Valley Cool Weather Adult Sleeping Bag
    Price
    $201.95
    $19.99
    $279.95
    $109.95
    $49.99
    Rating
    ⭐⭐⭐⭐⭐
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    Overview
    Marmot Always Summer Down Sleeping Bag
    Title
    Marmot Always Summer Sleeping Bag
    Price
    $201.95
    Rating
    ⭐⭐⭐⭐⭐
    Overview
    Ohuhu Warm Weather Sleeping bag 3 Season Lightweight Portable Sleeping bags Adult Kids Backpacking Sleeping bag with Carry Bag for Camping, Hiking, Backpacking and Outdoors 59℉-77℉
    Title
    Ohuhu Summer Sleeping Bag
    Price
    $19.99
    Rating
    ⭐⭐⭐⭐⭐
    Overview
    Nemo Disco Womens 30 Long (Celestial/Moonglade)
    Title
    Nemo Disco Insulated Down Sleeping Bag
    Price
    $279.95
    Rating
    ⭐⭐⭐⭐⭐
    Overview
    Kelty Cosmic 40 Down Sleeping Bag – 550 Fill Down Backpacking Sleeping Bag, 2021, Regular
    Title
    Kelty Cosmic 40 Degree Down Sleeping Bag
    Price
    $109.95
    Rating
    ⭐⭐⭐⭐
    Overview
    Coleman Green Valley Cool Weather Adult Sleeping Bag
    Title
    Coleman Green Valley Cool Weather Adult Sleeping Bag
    Price
    $49.99
    Rating
    ⭐⭐⭐⭐

    1. Marmot Always Summer Sleeping Bag

    Marmot Always Summer Down Sleeping Bag
    10 Reviews
    Marmot Always Summer Down Sleeping Bag
    • Certified 650 Fill Power Down with Down Defender to Improve Water-Resistance

    This summer sleeping bag can really go the distance. It’s not only comfortable and cooperative, but it’s also durable and you can use it deep into fall if you’re camping in the right regions. This is a mummy-style sleeping bag, it’s only good for a single sleeper, so couples are going to have to either double up on Marmots or look elsewhere.

    The mummy-style works surprisingly well for a summer sleeping bag. Because of the single-person sizing, you’re able to totally customize the amount of airflow and regulate your temperature quite easily. It also doesn’t sacrifice length for warmth. As long as you’re not taller than 6’6’’ you’re going to fit comfortably inside of this down-filled resting place.

    The bag is made from rip-resistant 40D  nylon. It’s the perfect material for a summer sleeping bag. If you’re like us you tend to save your more difficult hikes and camping trips for the summertime, so you’re probably always on the lookout for a durable summer sleeping bag that won’t get torn to shreds while you’re just trying to transport your things to your bed for the night.

    Read more buyer reviews at Amazon.com.

    PROS

    • Perfect as a summer bag, and pretty decent as a 3-season sleeper
    • Great for taller campers

    CONS

    • The red coloring might feel a little gaudy

    2. Ohuhu Summer Sleeping Bag

    Ohuhu Warm Weather Sleeping bag 3 Season Lightweight Portable Sleeping bags Adult Kids Backpacking Sleeping bag with Carry Bag for Camping, Hiking, Backpacking and Outdoors 59℉-77℉
    524 Reviews
    Ohuhu Warm Weather Sleeping bag 3 Season Lightweight Portable Sleeping bags Adult Kids Backpacking Sleeping bag with Carry Bag for Camping, Hiking, Backpacking and Outdoors 59℉-77℉
    • Lightweight & Portable: It can be hard to enjoy nature when you’re carrying around a huge backpack! Let us help you make things easier for you with this lightweight sleeping bag. Weighing only...

    This summer sleeper feels the most like bringing your bed along for the camping trip. It’s designed to resemble a comforter and a fully made bed, beaming comfort and familiarity right into your brain every time you unfurl this sleeping bag before lying down. It’s able to pull off all of that and more while keeping its weight well under a pound and a half. This sleeping bag has all of the creature comforts of sleeping at home.

    If it feels like your day hasn’t quite started until you’ve thrown the covers off of yourself, this sleeping bag can abide. It’s light enough to take into the office to catch a few winks if you’re the type to pull overnighters. It’s an odd use, but it speaks to how well this sleeping bag works for regulating your temperature and keeping you comfortable in a moderate setting like a summer night or an indoor nap.

    You’re here to see how it performs on the trail though. The weight and degree of compression of the down cotton lining make it one of the best companions for an intrepid camper looking for the perfect night under the stars.

    If you’re looking to bring a camping partner along and get up close and personal while you snooze, these sleeping bags are made specifically to combine a pair together to create an even larger sleeping surface for campers bringing loved ones along.

    Not only is it versatile, being perfect for the office or the summer mountains, it’s also durable and resilient. This bag has been waterproofed keeping you dry from morning dew, unexpected downpours, and any sort of unfortunate obstacles you find yourself wading through with your poor sleeping bag.

    Once you’ve come home from trudging through the dirt and muddy water, you’re probably going to want to clean your trusty sleeping bag off. This one is fully machine washable, which is a godsend if you’re prone to mucking up your bags during your camping trips.

    Read more buyer reviews at Amazon.com.

    PROS

    • Great for single campers or couple’s trailblazing
    • Versatile indoors and outdoors
    • Machine washable

    CONS

    • Feels much cheaper than other sleeping bags on offer this year

    3. Nemo Disco Insulated Down Sleeping Bag

    Nemo Disco Womens 30 Long (Celestial/Moonglade)
    97 Reviews
    Nemo Disco Womens 30 Long (Celestial/Moonglade)
    • SWEET DREAMS - Backpacking is better after a great night's rest; The 3 season Disco is designed to give you the best sleep in the backcountry; 650 fill power hydrophobic responsible-sourced down is...

    This is a great summer bag, and if you’re looking to keep yourself feeling warm and comfortable during the colder or ends of spring and fall without having to invest in a second bag, this sleeping bag is more than capable of acting as a 3-season bag if it comes down to it.

    It’s rated for survivability at a pretty frigid 15-degrees if it really came down to it. You’d have to come pretty bundled up to make it work comfortably, but we’re here for the summertime, not a winter doomsday report. This sleeping bag from Nemo Disco is the Batman utility belt of sleeping bags.

    There are vents, secret ergonomic considerations, and high-quality fillings that make this a sleeping bag well worth your time and money. It’s light without giving up its ability to keep you warm and comfortable, and it’s warm without becoming burdensome. 

    The ventilation system built into this sleeping bag makes it easy to regulate your temperature when you’re using it during the summer. Summer nights can be pretty hit or miss depending on the region you bed down in. A sweltering summer night in the humid south is going to call for a lot of ventilation, but if you start heading towards the southwest you might want to keep things buttoned up after the desert sun sets. 

    The ventilation system makes this bag a home run on its own, but we can’t mention this bag without talking about the curvy scoops taken out of the sides of this thing. The bag is shaped this way so that even side sleepers can have a restful night in their tents. Giving your arms and legs a little bit more room than similarly shaped mummy bags bumps this bag up a couple more slots in the race to become the best sleeping bag of the summer.

    Along with this distinctive scoop design, this bag is made with a waterproof and extra breathable foot section. This sleeping bag is made to keep condensation from building up in the warm spaces down by the feet of your sleeping bag while also keeping water from the outside from penetrating your fortress and ruining your camping trip.

    Read more buyer reviews at Amazon.com.

    PROS

    • The rare bag that’s great for every season
    • The foot area is an amazing feature for keeping your extremities comfortable throughout the night
    • Great for side sleepers

    CONS

    • Almost feels a little too high-tech

    4. Kelty Cosmic 40 Degree Down Sleeping Bag

    Kelty Cosmic 40 Down Sleeping Bag – 550 Fill Down Backpacking Sleeping Bag, 2021, Regular
    3 Reviews
    Kelty Cosmic 40 Down Sleeping Bag – 550 Fill Down Backpacking Sleeping Bag, 2021, Regular
    • TRAPEZOIDS, MAN: Turns out this funky shape is ideal for helping sleeping bags retain heat. Trapezoidal baffle construction improves our best selling Cosmic sleeping bag for 2021. Fan favorite and...

    The Kelty Cosmic sleeping bag trades flashy features for a plain and serviceable package. If you’ve been stuck on sleeping bags and you just want a proficient bag that you won’t feel bad about upgrading from after you’ve settled in with this sleeping bag. It’ll be tough to find a better bag, however.

    This sleeping bag is aggressive about the kind of warmth and comfort it can deliver. The unconventional trapezoidal shape of this bag gives you a lot of wiggle room and keeps your heat trapped inside of the sleeping bag more effectively than similar mummy bags that taper more sharply around the shoulders.

    It’s small changes like this that give this sleeping bag a leg up on competition without skyrocketing its price. The down interior of this bag doesn’t hurt either. It’s a great sleeping bag for folks that aren’t looking to drop a megaton of cash on their sleeping bag. It’s a great start and it will last you for ages. 

    Read more buyer reviews at Amazon.com.

    PROS

    • Great for first-time or long-time campers
    • The down filling of this bag makes it incredibly competent for holding in heat

    CONS

    • Runs a little hot

    5. Coleman Green Valley Cool Weather Adult Sleeping Bag

    Coleman Green Valley Cool Weather Adult Sleeping Bag
    1,383 Reviews
    Coleman Green Valley Cool Weather Adult Sleeping Bag
    • For temperatures 30⁰ F to 50⁰ F

    Don’t let the name fool you. This cool-weather sleeping bag is also a great option for camping in the summertime. It’s a great option for folks that run a little cold, even in the summertime. When the sun goes down, all bets are off, and it’s nice to know that a summer sleeping bag can keep you warm without going overboard as a winter sleeping bag would.

    This sleeping bag opts for the classic rectangle-style rather than the warmer mummy-style that’s a little more restrictive and keeps heat way too well for the summertime. The zippers on this bag are built to keep body heat in easily, but if you’re feeling too warm because of it, you can just slide the zippers open a little bit to regulate your heat. This lightweight sleeping bag is made with Coleman’s Fiberlock Construction.

    This is a process they utilize during the manufacturing of their sleeping bags that vastly increases the length of the life of your sleeping bag. If you’re prone to ripping your sleeping bags because you’re rough on the trail, these sleeping bags are an excellent option for you. It’s a huge load off of your mind when you have a sleeping bag that can keep up with you without being torn to shreds by trees during your transportation of them.

    Read more buyer reviews at Amazon.com.

    PROS

    • Great for campers that can’t seem to get warm while they’re sleeping
    • Easy to regulate temperature because of the classic design

    CONS

    • Could be a little warm if you’re used to summer nights

    6. TETON Sports Regular Sleeping Bag

    TETON Sports Celsius Regular Sleeping Bag; Great for Family Camping, Brown Poly Liner, Right zip , 80 x 33-Inch
    2,175 Reviews
    TETON Sports Celsius Regular Sleeping Bag; Great for Family Camping, Brown Poly Liner, Right zip , 80 x 33-Inch
    • COMFORTABLE SLEEPING BAG: Soft lining; Half-circle mummy style hood keeps you warm and your pillow clean; Unzips at the top or bottom for easy access and ventilation; For camping in three seasons

    The inoffensive name of this sleeping bag accurately represents how comfortable and simple this sleeping bag is. It’s a bag that’s designed to please everybody and we think it does that pretty well. From the coloration to the construction it’s just a pleasant bag that earns it the simple title that Teton gave it. This sleeping bag is insanely comfortable, especially for the price point.

    It’s made with a soft pillowy lining on the inside of the bag, making it feel like slipping into a cloud when you’re settling for the night. It also unzips all the way around, top, bottom, and sides to allow you to regulate the internal temperature of this sleeping bag to a level that’s perfect for you. It also employs a pseudo-mummy shape to keep your head cradled and warm during the summer without becoming a portable sauna. 

    Packing this sleeping bag away is so simple that it doesn’t require any thought at all. The bag is so easy to compress, you can just jam it into the bag bundled with it and you’re good to go. It’s light enough to slot into your backpack without throwing off your balance or making your pack so heavy that you’d regret bringing this bag along with you over another one.

    This bag is great for the summertime because you’re able to customize the amount of heat you choose to hold onto, but it’s also going to be a great bag for the cooler seasons. If you want a bag that will keep you warm enough during the spring and fall, this bag could probably keep you warm until those seasons start to dip into or climb out of winter. The bag is filled with a comfortable fiber filling, and the bag is double-layered to keep your heat locked in on colder nights.

    Read more buyer reviews at Amazon.com.

    PROS

    • Great for summer, and warm enough to keep the peace during spring and fall
    • The ability to regulate your temperature easily makes it incredibly comfortable no matter what the summer nights throw at you

    CONS

    • The decision to use a semi-mummy hood makes the head area of this sleeping bag a little awkward

    7. Active Era Ultra Lightweight Sleeping Bag

    Active Era Ultra Lightweight Sleeping Bag Indoor & Outdoor - Compact, Ultralight Sleeping Bag for Warm Weather - Camping Sleeping Bags for Warm Weather, Sleepovers, Fishing, Outdoor Camping and Hiking
    480 Reviews
    Active Era Ultra Lightweight Sleeping Bag Indoor & Outdoor - Compact, Ultralight Sleeping Bag for Warm Weather - Camping Sleeping Bags for Warm Weather, Sleepovers, Fishing, Outdoor Camping and Hiking
    • Ultra Thin & Lightweight: The sleeping bags ultra-thin and lightweight design makes it perfect for use in the summer months. With a 100GSM filling it is perfect for warm weather camping, hiking and...

    This is the minimalist’s sleeping bag. It’s the definition of ultralight, so if you’re into the challenge of trying to bring along the least amount of weight possible, this bag is going to be calling out to you when you see it. It’s a sleeping bag that ticks off the bare essentials without feeling like an uncomfortable mess.

    As long as you have a comfortable tent and a quality ground layer, then you’re going to sleep just fine with this hyper-simple sleeping bag. It’s rated for 50-degree survivability, so even though it doesn’t look like much, when the temperature dips, it can hold its own with the big boys. 

    It’s nice to go for the simple option sometimes, and this sleeping bag is as simple as it gets. It’s not for folks that love to luxuriate in their sleeping areas, but it’s definitely a good option for shoppers that are savvy about savings, and tough guys that don’t need much in the way of creature comforts when it comes to camping.

    Read more buyer reviews at Amazon.com.

    PROS

    • Excellent if you’re just looking for a quick cover and you don’t need much in the way of features
    • If you like to travel ultralight, then this bag has your name on it

    CONS

    • Sometimes a product can be too minimal. 

    Summer Sleep Skills

    Looking for a good sleeping bag for the summertime isn’t hard, but it’s important to know what you’re looking for. A lot of sleeping bags are geared for keeping you warm all year, but your needs aren’t as strict when it comes to summertime. As long as you’re not setting up camp in the desert, you really only need a lightweight sleeping bag that will generate a little extra comfort when the temperature starts to dip.

    When you understand the area you’re going to be sleeping in, the pieces will all into place and you can start picking out a good summer sleeper in no time flat. Even though summer sleeping bags don’t have to consider as many of the issues a winter sleeping bag has to (like keeping you from freezing to death) it’s still not easy to just pull a sleeping bag out of a hat. This means there an overwhelming number of options and attributes to keep track of when you’re shopping for summer bags.

    You have to think about the fillings, the material the bags are made of, the temperatures they’re rated for, how much the bag weighs, whether it compresses down into a shape that’s manageable for the amount of time you’re hiking or backpacking to your destination, does it come with its own method of carrying or are you going to have to tie it down yourself? Where do you even begin? 

    Our Winner

    Overview
    Marmot Always Summer Down Sleeping Bag
    Title
    Marmot Always Summer Sleeping Bag
    Price
    $201.95
    Rating
    ⭐⭐⭐⭐⭐
    Overview
    Marmot Always Summer Down Sleeping Bag
    Title
    Marmot Always Summer Sleeping Bag
    Price
    $201.95
    Rating
    ⭐⭐⭐⭐⭐

    This sleeping bag is hard to beat, when you compare it to its competitors you’ll find that his offering from Marmot is just better all around, and discounting that simple fact, the price point of this sleeping bag is enough to put it head and shoulder above the rest.

    It’s simple, but that’s where it shines. It’s the kind of summer sleeping bag you grab when you know you want something comfortable, strong, and reliable. The 40D nylon that makes up the outer layer of the sleeping bag makes it incredibly durable without bogging you down with a ton of weight. The nylon is also breathable enough to contribute to a comfortable night of rest when you’re out under the stars. 

    Bonus tip: Camping in the summertime is usually much easier than any other season, but there are still ways to make it even easier. This video is full of sage wisdom for summer sunshine campers. 

    In
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    Riley Draper is a writer and entrepreneur from Chattanooga, Tennessee. As a world traveler, he has been to more than fifty countries and hiked some of the most elusive trails in the world. He is the co-founder of WeCounsel Solutions and has published work in both national and global outlets, including the Times Free Press, Patch, and Healthcare Global. When he's not writing, he's probably on a hiking trip or climbing in the mountains.

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