No one likes being cold, but finding a warm sleeping bag at a more friendly price point may feel tougher than shivering through the night. High-quality affordability has historically been a misnomer. But that changes this year with these sleeping bags, which make it easier to spend a comfortable night under the stars without blowing your bottom line.
Our five favorite budget sleeping bags are great for car camping or backpacking and boast varying temperature ratings, levels of packability, and weights. But they do all have one thing in common: They ring in at less than $200. Now you’re one step closer to your next or first camping adventure.
- Versions: Men’s regular and long; women’s regular
- ISO lower limit: 19°F (men’s); 14°F (women’s)
- ISO comfort: 30°F (men’s); 26°F (women’s)
- Weight: 2 lbs. 7 oz. (men’s); 2 lbs. 9 oz. (women’s)
- Insulation: 600-fill-power DriDown™
- Price: $179.95–$189.95
Test Results: One sleeping bag to rule them all that’s the Cosmic 20. It stands atop the podium as the only budget bag on this list that uses down insulation, which gives it the best warmth-to-weight ratio in the test. It also packs down to the size of a basketball, which means you can take it backpacking if you’d like.
The latest iteration of Kelty’s three-season superstar uses 600-fill DriDown™. Paired with a 20-denier nylon taffeta shell fabric, the Cosmic 20 fairs well in inclement weather. One tester reported that the sleeping bag shrugged off moisture on Virginia’s Tuscarora Trail and dried quickly after being packed damp in the morning.
“It was always fluffy and ready for bedtime,” he reports. Note: The Cosmic 20 is entirely 600-fill-power down with a small percentage of polyester in the foot box, which helps the bag resist long-term compression.
Other features our testers loved? The 50-denier polyester-taffeta liner feels like silk bedsheets next to the skin. And though the 62-inch shoulder dimensions are standard in this category, the 58-inch hip girth is roomier than many mummy bags. Also nice: There’s a handy external stash pocket near the right shoulder.
Bottom Line: High-quality down insulation and an entry-level price make the Kelty Cosmic 20 a solid choice for car campers and new backpackers alike.
Most Eco-Friendly Budget Sleeping Bag
- Versions: Unisex regular and long
- Approximate temperature rating: 18°F
- Weight: 3 lb. 14 oz.
- Sustainability attributes: Both shell and insulation contain recycled materials.
- Insulation: Recycled polyester
- Price: $129–$139
Testing Results: Feel good about snoozing in this bag: Zippers aside, the Eco Trail Synthetic 20 is constructed almost entirely with recycled materials, beginning with the 50-denier polyester shell and ending with the 100 percent recycled synthetic insulation.
Then, The North Face wraps up this eco-friendly package with a bow: The bag is treated with a durable water repellent free of perfluorinated chemicals (or PFCs) typically found in older-school finishes.
But Mother Nature’s gain is not your loss the Eco Trail Synthetic 20 is still warm. With an approximate temperature rating of 18°F, it should keep you toasty in mild, three-season conditions.
“I slept without any shivers in mid-30 temps,” reports one co-op member who tested the bag on a work trip to Alaska’s Arctic National Wildlife Refuge. The same tester notes, however, that the bag didn’t cut the windchill well; on gusty evenings, layer up.
The extended width in the knee area of the Eco Trail Synthetic 20 makes this mummy bag feel a little more comfortable, especially for larger sleepers (taller than 6 feet). “I still had an inch or two of wiggle room on each side,” one says. Another cool design feature is the bag’s J-shaped zipper, which lets you vent your core while keeping your feet covered.
Packability is nothing to write home about, so make some extra space in your luggage: This bag stuffs down to the size of two volleyballs, making it best for car-camping and from country pursuits.
Bottom Line: The comfy North Trail Eco-Trail Synthetic 20 has a lavish toe box and ample wiggle room, plus a bevy of planet-pleasing materials.
Exped MegaSleep 25/40
Best Budget Sleeping Bag for Car Camping
- Versions: Unisex medium and large
- Approximate temperature rating: 25°F
- Weight: 1 lb. 14 oz. (medium)
- Insulation: Polyester
- Price: $139
Test Results: It’s the best kind of BOGO: Buy one sleeping bag, get a second free. The Exped MegaSleep 25/40 has one side that’s rated to around 25°F and the other rated to around 40°F, so you can customize your warmth by choosing which side is on top.
“It sounded gimmicky, but I actually loved having options,” says one tester who tried out the MegaSleep 25/40 on the shores of New York’s Lake Ontario. The same tester praised the convenience of being able to adjust the bag’s warmth as temperatures dropped over the course of an evening.
Unlike other sleeping bags on this list, the MegaSleep 25/40 has a rectangular cut with a whopping 63 inches of shoulder width. The result: bed-like comfort. “I could actually fit my sleeping pad inside my bag with all the extra space,” says one tester. All that comfort makes the bag too bulky for backpacking, however. It packs down to the size of a large watermelon.
This bag’s versatility continues with a full-length zipper that wraps around the bottom, allowing campers to transform the bag into a quilt on warmer nights.
Bottom Line: Two different warmth ratings and a roomy cut make the Exped MegaSleep 25/40 great for car campers looking to stretch their budget.
NEMO Tempo 20
Best Budget Sleeping Bag for Side Sleepers
- Versions: Men’s regular and long; women’s regular and long
- ISO lower limit: 19°F (men’s); 12°F (women’s)
- ISO comfort: 31°F (men’s); 23°F (women’s)
- Weight: 3 lbs. 10 oz. (men’s); 3 lbs. 12oz. (women’s)
- Insulation: Synthetic
- Price: $149.95–$159.95
Test Results: Surveys say that as many as 75 percent of people prefer sleeping on their sides, but traditional mummy bags which are warmer than their rectangular brethren aren’t ideal for this snoozing style.
NEMO solves this conundrum by introducing its classic spoon-shaped design to the Tempo 20, adding surplus inches to the shoulders and knees so side sleepers can rest easy. “I felt like I could pedal a bike,” one tester says.
The Tempo 20 scored top marks for comfort for more than just the generous cut, though. The sleeping bag also has a blanket-like fold around the wide hood, so you’re more likely to feel like you climbed into bed rather than a bag.
It kept our testers warm down to the comfort rating, but there’s a trade-off for all that synthetic insulation: It’s well over 3 pounds and stuffs down to the size of two volleyballs. Only ambitious backpackers would want to tote this thing to faraway campsites.
Other nice features in the Tempo 20: an integrated pillow pocket, a zippered stash pocket, and compatible zippers. The men’s and women’s versions of this bag can zip together for evening snuggle sessions.
Bottom Line: Side sleepers who want mummy bag-warmth will love the roominess of the NEMO Tempo 20.
A quality sleeping bag can make or break your next camping adventure, but it may feel daunting if you don’t understand what to look for before making your choice. Here are a few factors to consider when snagging yourself a sleeping bag, regardless of its price tag.
Weight and Size
When it comes to car camping, you can simply pick the warmest, roomiest sleeping bag you like because you won’t be shouldering it. For a rundown on all the things to consider, read How to Choose Sleeping Pads for Camping.
For backpacking, however, you’ll want the warmest, roomiest sleeping bag that fits inside your pack and doesn’t weigh you down. You can of course tote however much weight you’d like backpacking, but in this guide, the Kelty Cosmic 20 and REI Co-op Trailbreak 20 are the best for it. They’re lighter and a bit more compact than the others here.
Note that some sleeping bags have a men’s or unisex version and a women’s version. Though this is how the brand has distinguished them, a more helpful delineation is to think of them as “warm sleepers” and “cold sleepers.”
Warm sleeper’s bags (or men’s or unisex) have bigger dimensions and more forgiving temperature ratings. Cold sleeper’s bags (or women’s) have smaller dimensions and warmer temperature ratings thanks to added insulation. That often makes the cold sleeper’s version of the bag heavier and bulkier, despite its smaller dimensions.
Type of Insulation
Sleeping bags are filled with either down insulation or synthetic insulation. In general, down insulation (made from goose or duck plumage) is lighter and more packable, offering the best warmth to weight. Down isn’t inherently water-resistant, but today, most are treated to make it hydrophobic. Down insulation is also very durable and will likely hold up to years of packing and unpacking it into a stuff sack. Trade-off: It tends to cost more than synthetic.
The Kelty Cosmic 20 is the only bag on our list that uses down insulation.
Note: If you opt for a down sleeping bag, be sure to check out the ethical practices of the company making your sleeping bag. These days, most outdoor brands have standards that protect the welfare of the animals, but it’s a good idea to be informed.
On the flip side, synthetic insulation (like polyester) retains more warmth when wet, making it a popular choice with folks who live in moist climates. It also dries faster than down and is less likely to aggravate allergies. As an added bonus, it is almost always cheaper than down, too. Synthetic insulation is bulkier than down, however, and often comes with a weight penalty.
In this guide, you’ll see two shapes of sleeping bags: mummy and rectangular.
A mummy is wider in the shoulders before tapering at the knees and foot box. This eliminates extra space inside the sleeping bag, making it easier to create and maintain warmth. It also cuts down on materials and weight, which makes this style popular in the backpacking and ultralight communities.
But there’s still some variation there. The Kelty Cosmic 20 and REI Co-op Trailbreak 20 have the narrowest dimensions in our test. The North Face Eco-Trail Synthetic 20 and NEMO Tempo 20, on the other hand, are cut wider, which makes them better options for side sleepers and folks who want more space to curl up or spread out inside their bags.
A rectangular sleeping bag looks just like it sounds: a large rectangle. The bag does not taper like a mummy bag does and instead maintains its shape to give campers maximum wiggle room. Often, rectangular bags can be fully unzipped and used as a comforter, too. However, this shape does mean there is more dead space in the bag, making it tougher to stay warm.
The Exped MegaSleep 24/40 is the only rectangular bag on our list.
We could pen a thesis on how temperature ratings are determined, but for you, dear reader, all you need to know is that the number in the name of the sleeping bag is pretty close to what its lower limit is.
So our most basic advice is to purchase a sleeping bag with a number that’s 10°F to 15°F lower than what you expect to encounter on your coldest trips. For example, if you do most of your camping in the mountains where the temperature drops into the 30s at night, go for a bag that has 20 in the name.
In general, summer-season camping calls for bags rated to 30°F or higher. Three-season camping usually requires bags with ratings closer to 20°F. You won’t find anything that much warmer for less than $200 on the market.
Of course, choosing a temperature rating is an exercise in knowing yourself, too. If you’re a person who is always cold, take that into consideration.
Temperature Ratings, Explained
Remember that thesis? It would go something like this.
Being able to compare one brand’s 20°F bag against another’s used to be a problem because outdoor brands tested them differently. Decades of work to standardize those ratings thankfully means nearly all brands play by the same rules now, though those rules are complicated.
An “ISO” or “EN” temperature rating indicates the test standard used. Either requires rigorous, standardized testing, and the two standards are roughly comparable. So, as long as a bag has one of those acronyms, you can compare their temperature ratings. All but one bag in this guide use the ISO standard.
Note that, while these test standards can be applied to most backpacking bags, certain sleeping bags are not covered by the standards. Sleeping bags without hoods like the Exped MegaSleep 25/40 are assigned temperature ratings by varying tests used by the brand.
Bags are assigned two temperature ratings: limit and comfort ratings. A lower-limit rating is the lowest temperature at which the bag will keep a warm sleeper comfortable and is generally the temperature assigned to men’s or unisex bags.
Comfort rating is the lowest temperature at which the bag will keep the average cold sleeper comfortable and is generally the temperature assigned to women-specific bags. If a temperature rating omits the term “comfort” or “limit,” then it’s likely a brand’s estimate, not an ISO or EN test result.
Cold sleeper’s (women’s) bags that use the warmer “comfort rating” as their standard will inevitably be heavier than the equivalent warm sleeper’s (men’s) bags. It simply requires more of given insulation to achieve more warmth.
A temperature rating is not a guarantee of warmth. Standardized ratings are super important because you can more reliably compare bags from different brands. But metabolisms vary greatly from person to person, as do variables like the pad you pair your bag with, humidity, wind, type of shelter, ground conditions, clothing, and personal preferences.
In the spring and summer of 2020, we asked 13 co-op members from around the country to sacrifice their shut-eye for you and spend some nights under the stars in their local wilds.
We sent around a dozen of the best sleeping bags for less than $200 sold at REI, and they got sleeping on frigid granite surfaces in Washington’s Cascades, through relentless windstorms in Colorado’s high country, amid Virginia squalls that leaked into tents and, yes, even above the Arctic Circle.
After seven months of testing, they evaluated each sleeping bag on its warmth, weight, packability, and durability. We then averaged their scores and distilled their feedback. The five sleeping bags in this gear guide are their favorites, the highest-scoring bags of the bunch.