Sleeping Bag Liners

The best sleeping bag liners, reviewed and curated by the Trailspace community. The latest review was added on June 23, 2019. Stores' prices and availability are updated daily.

Recent Sleeping Bag Liner Reviews

rated 5 of 5 stars
Lifeventure Silk Sleeping Bag Liner

A ightweight and compact liner that improves insulation and protects the inside of a sleeping bag. Can also be used on its own for really hot muggy nights. I always use a liner as part of my layered sleep system. Foremost, it gives the inside of the bag a degree of protection, especially on longer walks where access to washing facilities is limited. Additionally, it actually does improve the insulating properties of a sleeping bag by a couple of degrees —I really notice the difference with and… Full review

rated 4 of 5 stars
Sea to Summit Adaptor Traveller

A good stretchy thin liner from Sea to Summit. I bought this liner two years ago and have used it on several occasions. The Adaptor Traveller differentiates from the Adaptor model by a pillowcase that comes in handy when unsure about a pillow other than yours. Therefore possibly a little heavier too. Mine was 305gr with its carrying bag.It features a very thin stretchy Coolmax fabric that won't give up on a restless sleep due to its elasticity. So no tears when you wake up. It is comfortable! Like… Full review

rated 4.5 of 5 stars
Sea to Summit Reactor Thermolite Liner

Reactor Thermolite sleepong bag liner: Extend the comfort range of your mummy sleeping bag Increase warmth by +8 c (14 f) Regular length 210 cm 6' 11 in Width 35 in Brand New This is my first Sea to Summit sleeping bag liner. I just got it so I can't give you any feedback yet. Wait until the predicted BLIZZARD hits in February (Old Farmers Almanac) at which time I will edit my results. On the label, it says that there are other temperature ranges available. Too late. I have the regular one now and… Full review

rated 5 of 5 stars
Sea to Summit Reactor Extreme Thermolite Liner

This liner did exactly what it is supposed to—it made my summer bag 20 degrees warmer. Worth the purchase. Kept me warm and cozy on cold nights. Thermolite used with cheap 45°F bag seen here.  I bought this product to use with my cheap summer sleeping bag so I didn't have to spend a lot of money on a warmer bag. This product worked exactly as it should. It added considerable amount of warmth. There are three different ones and each one adds more warmth. I bought the Thermolite Extreme. It was… Full review

rated 4.5 of 5 stars
ALPS Mountaineering Microfiber Mummy Liner

This is a great liner at a much better price point than most. A must to protect and keep your bag clean. Perfect for summer trips, not much help for extra warmth. First things first, I bought this based on a Killer Review on Trailspace. It was super helpful, and there’s no way I could do better, and I agree with all of his points, so definitely check his review out: https://www.trailspace.com/gear/alps-mountaineering/microfiber-mummy-liner/?review=34340   My additional thoughts: Entry & Exit:… Full review

rated 3.5 of 5 stars
Sea to Summit Reactor Plus Thermolite Liner

Limited warmth, but soft and comfortable to sleep in. I bought this product last winter to help out the warmth in a cheap sleeping bag, which it did slightly. Sea to Summit claims it will improve warmth up to 25 degrees F. I would guess this liner adds maybe 10 degrees of warmth. I'm a big fan of Sea to Summit products in general, some seem a bit gimmicky or overbuilt but everything I've seen is well made, quality stuff. And this liner is no exception. The liner is basically a soft fleece/flannel… Full review

rated 5 of 5 stars
Jag Bags Silk Sleeping Bag Liner

I got this originally for a cross-country travel as I was going to be in a car half the time and in hotels the other half of the time. I got it to have the ability to have a great, warm night's sleep no matter where I ended up on my travels. This has multi-use functions and is great for camping, car camping, hotels, hostels, etc. I would suggest to pick one up as they are not that expensive and great to have around even if the heat in your apartment goes out for a day or two. So many uses and a… Full review

rated 2 of 5 stars
Chinook Pongee Mummy Liner

The Chinook Pongee Mummy Liner is a very basic, no thought, sleeping bag liner that might work well for small, short people. Sadly, I can think of no reason at all to recommend this product to anyone. Words of wisdom to start with: First of all... ALWAYS use a sleeping bag liner! A sleeping bag is an investment—usually an expensive investment. The insulation in a sleeping bag, whether down or synthetic, has to be able to create dead-air space to keep the warm air in and cold air out. A bag's insulating… Full review

rated 5 of 5 stars
ALPS Mountaineering Microfiber Mummy Liner

I can't believe no one has reviewed these liners! This is one of the best liners on the market! I have two of these, and I've had them for several years. They cost less, are lighter, more comfortable, easier to get in and out of, and out-perform the Sea To Summit Reactor (I have one of those, also). I highly recommend this liner to anyone that doesn't have a liner, and also to those who have the Reactor and are ready for a better liner. --> Before I start the review, let's get the education and… Full review

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