11 Reviews: Best Synthetic Sleeping Bags (May 2024)

For newbies, car campers, and those who aren’t worried about weight and bulk, the Kelty Cosmic Down 20 (women’s Cosmic here) is a wonderful cheap option. Remember that you get what you pay for, so don’t expect Cosmic to deliver the same level of quality as the other bags on this list. Nonetheless, this backpack is useful and comfy enough to do the job. 

"I was looking for an upgrade to the cheap Ozark Trail synthetic bag I’ve had for years. The Cosmic 20 packs down tight and is plenty long for a 6’3” guy. The exterior is waterproof enough to protect against condensation and I’ve had no problems with the zipper so far. Would definitely recommend!"

by Ted Faro

We all hope we can have sleeping bags that are light and compressible like down, but we also want the one that remains dry and affordable enough like synthetic. Well, Hyke & Byke Katahdin Sleeping bag granted your wish. This sleeping gear uses Advanced Synthetic which is claimed to be “the lightest, most compressible down-like synthetic bag.” Still in doubt? Prove it yourself.

"I took this bag on my backpacking trip. For a synthetic bag, it has great fill power and is able to compress almost as small and light as a 650 FP down bag. The bag lofts nicely,is warm and comfortable. Even though I did not experience nights below 50 degrees,.."

by Walrus

This one is a great option for a hammock sleeper since it fits well inside a hammock. This blanket is designed for those who look for a lightweight option that is able to provide warmth. The Spark Camp Quilt by ENO comes with a temperature rating of 40-50 degrees Fahrenheit and has a water repellent finish that keeps you dry through any storm.

"I've been using this item for about 2 months straight because I hammock camp as well as sleep in a hammock every night at home. The product keeps you warm, the underside is soft and it can be utilized as a blanket or as a sleeping bag. I'm glad I made this purchase."

by Amazon Customer

The perk of having a rectangle shape sleeping bag is that no matter what your favorite sleeping position is, you will have plenty of room to spread out. That’s what you get if you pick this Exped MegaSleep. Apart from that, you can flip it over based on weather conditions: the dark blue side up for cool nights (down to 25°F) light blue side up for warm nights (down to 40°F). Isn’t that impressive?

"Perfect size, super comfortable. Loved it so much I’m buying two more for my Boy Scout sons!"

by CampingFamily

This is another decent sleeping gear to enhance your sleep quality outdoor‒or indoor. The Trailhead ThII weighs 2 lbs 5 oz and continues to keep you warm even if it gets damp. Another plus feature is the zipper, which can completely open and lie flat for use as a quilt, making it practical and versatile.

"Only slept in it a few times, but this bag is awesome. Cool to the touch fabric on the inside, easy pull zippers with snags Only with overly quick or harsh use. Compresses and expands with ease."

by William W.

Marmot has long experience in the world of outdoor gear. No wonder the quality always stands in the front row. The Trestles Elite Eco 20 Sleeping Bag also proves this. It offers warmth and comfort for backpacking in 3 seasons with a temperature rating of 21.6 degrees. Featuring a 3D hood construction, this bag keeps you from chilly nights from head to toe.

"I wanted something lightweight and warm and this bag has done just that! it fits perfectly at the bottom of my pack and is easy to compress in its own bag too. I like the addition of the zipper pouch inside and that you can open the entire bag to the feet for added breeze! the material is soft."

by lalizesses

Yeah, the name does sound funny. But, calm down, this one is not designed just for cat lovers, really. The North Face Cat’s Meow Sleeping Bag is a smart option for backpacking in damp conditions. This mummy bag is equipped with a draft tube that is tasked with repelling cold, piercing gusts at bay. As low as 20F degrees can be handled easily.

"Finally had the chance to use this on a backpacking trip week and had some cold nights in the upper 30s and it handled great and never had to fully zip up because I was so warm. Packs down great for backpacking."

by Stephanie Kurth

The North Face Eco-Trail Bed Double will not only make you toasty but also more romantic with your partner beside you. It features 100% recycled fabrics that make you less-guilty if you care about nature. Without looking bulky, this sleeping gear can handle as low as 20F degrees and provide a softer feel in the skin. Not to mention the internal pocket that keeps your essentials within reach.

"Makes 20 degree camping feel easy! Keeps us very warm at night and incredibly comfortable. The fleece at the top of the sleeping bag is fantastic, especially for the colder nights when trying to keep the warmth in..."

by Sadie2897

You crave warmth but are also reluctant if it adds weight to your back. NEMO Kyan ticks the boxes as it can make you feel at home, even when the temperature around you is as low as 21F degrees and weighs only 1 lb 2 oz. The durable water repellent finish also contributes to giving you the utmost comfort by resisting moisture and stains away. No need to wear a thick fur coat, this one is enough.

"I bought the Kyan 20 right when it came out. Took it on a colder trip right away, and it was great. The temperature got down to about 24 degrees, and this bag kept me warm while only wearing a baselayer. The bag is well-made, the material is very comfortable,.."

by Surthrival

In order to produce a dream sleeping bag for you, Backcountry has teamed up with NEMO and that’s where Chigu started. The spoon shape bag has a generous space which is a gift for side sleepers, which is rarely found in mummy shapes. No wet feeling you get, thanks to the DWR finish all over the surface and lining. Rated at 20F, you can stay cozy on backcountry outings while counting the glittering stars.

"We took this camping in Eastern UT. The temps dipped down to the mid 30's our first two nights using these. Night one I bundled up on clothing layers expecting to have to shiver through the night instead I was SWEATING the entire night. Night 2 I slept without any extra clothing and was nice and warm. .."

by Matthew Hoppe

Our last list is a bit mind-blowing since you will get a bundle of the tent, sleeping bag, and sleeping pad! Yes, you read that right. Only by paying less than $300 you can bring the complete package to make your dream adventure come true. The Trailbreak 30 long sleeping bag has a stretched mummy shape that allows you to sleep in any position and refuse to wake up.

"Bargain package that also delivers on quality and durability. Tent windproof to 20’s, sleeping bag warm to 30’s. Comfortable bag pad, all light and nylon seems adequate in thickness."

by Earl