ALPS MountaineeringMummy Liner

Keep your bag clean and comfortable.

If you use your sleeping bag heavily you know that it can be a pain to keep clean. Take advantage of the Alps Mountaineering Mummy Liner for an easy fix. Both the MicroFiber and Poly Cotton options are extremely comfortable and easy to clean. If you find yourself by the campfire and need a little extra warmth, the liner will come to your rescue.

  • Liner helps keep your sleeping bag a bit cleaner
  • Brushed polyester, cotton blend is soft and easy to clean
  • Standard stuff sack maintains compact, convenient storage
  • Reviews
  • Q & A

Get one!

  • Familiarity: I've used it several times

This was a last minute buy, but I'm so glad I got it, and after I used it, thought why didn't I know about this kinda thing earlier? If you're questing getting one, don't. Just get it, you won't regret it.

High Hopes

  • Familiarity: I've used it several times

Once again I was in need of a bag liner, and decided to try my luck with this one. In the past I've always used the cotton/silk blend, or silk versions. They always ended up tearing, after a relatively short life (and a high price tag). This one seems to be constructed in such a way that I hope for greater longevity, as the material is not see-through. It has a heavier weight (much like a bed sheet) that lent a nice comfort in the woods. So far it's seen two trips and 14 days of use, and I'm hopeful it will continue to perform just as well.

Save $50 and get this liner

  • Familiarity: I've put it through the wringer

I used this on a month long trip with a Sierra Designs Mobile Mummy 2 season bag to protect and extend the temp rating. It worked perfectly. The bag is rated for 40 comfortable and 30 minimum but I had a night down to 20 and many down to 30 and I think this liner really helped me sleep comfortably..

A lot of the other liners sell for $70. Save your money and get this.

It's easy to get in and doesn't confine or restrict movement. I'm 6' 2" 185 lbs and was perfectly comfortable and it covered me well.

I also had nights with temps in the 50s and the liner was great by itself for sleeping.

Great, thin liner!

    This is a super-soft thin liner. It's also rather long, which I like. The only downside is that it only has a velcro closure about 1/4 of the way down, so once you're "in", you're in.

    Keep me warm

    • Familiarity: I've used it once or twice and have initial impressions

    Awesome liner. Paired it with the alps 0degree crescent lake mummy bag. Keep the zipper down to my knees and was in the liner in the bag was able to use the bag like a open comforter and the liner keep me just warm enough with the breeze of cool air that came through

    Great liner!

    • Familiarity: I've used it several times

    Used it in weather 45 degrees with a 30degree rated bag. Kept me toasty. Perfect to use alone during Feels like a nice cotton sheet which I love!

    Good Liner

    • Familiarity: I've used it several times

    What can I say. This sucker lined my bag. Pretty happy about that.

    Itchy and stiff

    • Familiarity: I've used it several times

    I got the microfiber version of this liner thinking it was a steal based off the reviews and the fact that I got it for 50% off. However, I was utterly disappointed with the fabric quality. I expected it feel like legit microfiber, however it felt more like an itchy hotel sheet. After washing it, the liner felt a little bit better, but not by much. Other than the quality of the fabric, the design itself is pretty sweet because it has a small side flap the makes it a breeze to get in and out of. I don't know if the polycotton version is any better, but maybe I just got a flawed liner. Regardless, I can't really recommend this liner.

    Unanswered Question

    What size would of sleeping bag would this fit?

    Unanswered Question

    ALPS Mountaineering Mummy Liner - What is the difference between the Microfiber and Poly/Cotton choices? Pros and Cons?


    Stuff sack?

    Yes, this item comes with a stuff sack

    Solid but heavy

    • Familiarity: I've used it several times

    Very solid. Used it about 10 times and it looks like it will last. However it's too heavy for a backpacking liner.

    A sleeping bag's best friend

    • Familiarity: I've put it through the wringer

    I have been using the microfiber liner for about a year now and it is great. This is more of a 3 season liner so it won't add much extra warmth (if you need warmth for winter camping you should look at a fleece or heavier liner) but in the middle of summer you really aren't going to be too concerned with warmth. The biggest thing this liner is going to do is protect your sleeping bag from dirt and oils on you. It is a lot easier to was a liner than it is a sleeping bag (safer too).

    This liner is a lot easier to get into compared to a lot of liners on the market today. I tried a Sea to Summit reactor and only having the top open made it really hard to get in and out. This at least having a little opening down the side is easier when you have to pee at night. It packs up small and is light weight. What more could you ask for in a liner?

    Good liner

    • Familiarity: I've used it once or twice and have initial impressions

    I bought this mummy liner for my wife's sleeping bag. She tends to sleep a bit on the cold side and also didn't like the feeling of sleeping against the sleeping bag itself. This liner helped out with both, though it only does so much to add warmth. The fabric is much better to sleep against than the inside of a sleeping bag. Easy to pack and easy to clean, it's a winner.

    For the price, good.

    • Familiarity: I've put it through the wringer

    For the price I paid, ~$15, I would highly recommend this. I've used it quite a few times inside an aging 20 degree REI synthetic bag, and it's been great. It will keep you a few degrees warmer, but that's not the main point of this liner. I hate the inside of sleeping bags, they get my skin sweaty and I don't like the nylon. This solves that, it's like a sheet, maybe a bit thicker. It's easy to wash, and keeps the nasty smell out of your sleeping bag. I sleep warm, so many nights I'll unzip my sleeping bag, but wind will then blow in and is too cold on my skin. This is a perfect middle ground: sleep in this liner with the sleeping bag on top as a quilt. Very comfortable.

    No zipper, so it's kind of hard to get in and out of, but worth it.

    rating on liner??? I have 20 degreebag ...

    rating on liner??? I have 20 degreebag would this get me down to 10

    That really depends on you and the environment you are in. If you are more of a warm sleeper this should do for you , but if you are more of a cold sleeper it will probably not get you that much. I have tried a few liners and found that the actual temp rating for me at least is not completely accurate. But backcountry has a good return policy so if you find it isn't what you want you can easily return it.

    No way. this is more of like a sheet for the inside of your sleeping bag. I would say 2 or 3 degrees at most.

    Sleep warmer, extend you bag

      Got a good deal on this liner. Like the silk better but this is a good product if you aim to save $$$

      How much does it weight? Does it comes...

      How much does it weight? Does it comes with a stuff sack/

      I don't have it in front of me but i believe it's under 2lbs. Does come with bag. I enjoy it!

      REI has this liner listed at 9.6 oz.

      Best Answer

      Product website says 11 oz.

      I would go with that ALPS website says. I have the one I got from REI and it is about 9.6 oz, but this is not the same liner from REI this is the poly/cotton version the one REI is selling is the microfiber version.

      Does this have a zipper and how far down...

      Does this have a zipper and how far down does it go? What would be the proposed degree rating if used alone for a light summer weight bag?

      Best Answer

      No zipper. I wouldn't recommend it as a solo bag unless used at a hotel or hostel.

      degree rating that it would lower to. I have a 20 degree bag would this get me down to 10