Best Budget Backpacking Sleeping Bags of 2025

BEST BACKPACKING SLEEPING BAG UNDER $100

The Marmot Nanowave 45 is an affordable summer sleeping bag that won’t take up too much room in your backpack. Not only is it cheap, it’s practical and functional which is why it’s our pick for the best backpacking sleeping bag under $100. 

In awarding it the winner of the best under $100 category, we realize it’s not quite fair because most other bags on this list have a temperature rating down to around 20 degrees. However, if you’re on a super tight budget and plan to camp from mid-spring to mid-fall, the Nanowave 45 is hard to beat.

Which leads us to the biggest downside of this bag, it is only good in mild weather. But, not everyone needs or wants a super warm bag and if you combine the Nanowave with an extra warm sleeping pad and a thermal liner, you might be able to extend the temperature range of this bag down a few degrees, making it much more versatile. If you’re looking for a warmer budget backpacking sleeping bag, check out the REI Trailbreak 20 which is also featured on this list.

The Kelty Cosmic 20 is a budget minded down sleeping back that is a great option for new backpackers who don’t mind carrying a bit of extra weight and bulk to save some cash.

What we love the most about this bag is its overall value. The Cosmic’s quality and warmth are great considering how inexpensive it is. Of course, you can’t compare the build and material quality of the Cosmic to the top of the line bags on this list but it is practical and comfortable enough, making it tough competition for other budget options.

The biggest downside of the Cosmic is it is much more heavy and bulky than other backpacking sleeping bags, but hey, it’s one of the cheapest down bags around. If you’re just starting out, you could always go for the Cosmic and if you end up becoming a hiking junkie, you could upgrade and retire this bag to car camping adventures. 

This bag is also offered in 40-degree and 0-degree versions. 

BEST BUDGET WINTER SLEEPING BAG

The Marmot Trestles 0 is a real find for hikers wishing to explore cold environments. With a durable SpiraFil synthetic insulation, the sleeping bag will keep you warm at temperatures as low as 1.9°F. A 3D hood will provide warmth and comfort for your head; you can also cinch it tightly around your face during freezing nights. Another great feature of the Marmot Trestles is the foot box, which ensures extra comfort and warmth where it’s most needed. 

The Trestles 0 has a full-length, two-way zipper built to prevent snagging. There is also a fold-down second zipper that provides fresh ventilation. In case you need anything during the night, there is an external stash pocket for your essentials. Additionally, the bag has two hang loops for storing or drying out the bag.

BEST LIGHTWEIGHT & BUDGET-FRIENDLY SLEEPING BAG

The Therm-A-Rest Space Cowboy 45 is an awesome ultralight mummy-shaped sleeping bag. Its compressed volume of 2 liters makes it highly packable and lightweight. Because this sleeping bag only withstands 45°F, it is better suited for warmer weather and summer camping. However, you can layer it with other quilts using blanket loops on the bag, expanding its versatility. Additional removable connectors even let you fasten a sleeping pad to the bag. 

The Cowboy 45 uses water-resistant synthetic fill that retains its insulation abilities even when damp. It is strategically placed in certain areas to optimize warmth and weight. The ThermaCapture lining efficiently traps body heat. Additionally, a cinchable hood also guards against unwanted drafts. All these features make the Space Cowboy 45 a great companion for backcountry travels.

The Mountain Hardwear Bishop Pass 15 is a middle of the road bag that is good value while including some features you won’t find in budget sleeping bags. 

What we love about this bag is its balance between price and features. While it’s not the cheapest bag out there, it does include some clever features that make a huge difference. The draft collar lets you cinch the hood around your face which seals out the cold air. Also, the foot box has an opening that gives you some air flow if you get too toasty. Another thoughtful touch is that the pulls glow in the dark, a handy feature at three o’clock in the morning.

The biggest downside of the Bishop Pass 15 is on the heavier, bulky end of the line up. We wouldn’t recommend lugging it on long distance trips but it is manageable for short backpacking adventures. Also, it has a pretty narrow fit. If you’re a side sleeper or like to sprawl, you should probably steer clear from the Bishop Pass. 

Looking for a higher or lower temperature rated bag? The Bishop Pass line is also available in a 0-degree version.

The Mountain Hardwear Bishop Pass 15 is also available in a women’s version in a 0-degree and a 15-degree option.

The REI Co-op Trailbreak 20 is a budget minded synthetic sleeping bag that was designed for people who are just starting out backpacking. 

Just because this bag is a steal doesn’t doesn’t mean that it is cheap. While the Trailbreak 20 is nowhere near as light, comfortable or packable as the bags at the top of our list, we have to give it credit for being an exceptional value. Its size and weight is manageable for short backpacking trips.

The cash savings do come with some drawbacks.The lining fabric is a bit rough making it much less comfortable than the silky fabric found on many other bags. Also, it doesn’t have a neck baffle, so some heat does escape through the top of the bag. One last nitpick, the Trailbreak doesn’t come with a compression sack, so you’ll need to calculate that into your decision. If you’re on a tight budget and just can’t spring for a better sleeping bag right now, this is a good option to get you out on the trail fast.