Sea to Summit  Expander Sleeping Bag Liner with Pillow Insert

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Wonderfully soft, stretchy and warm, the Sea to Summit Expander rectangular sleeping bag liner with pillow insert adds warmth to your sleeping bag and also extends its life by keeping it clean.

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Features

  • Premium stretch-knit fabric expand twice its width, so you'll never be bound up inside
  • Built-in pillow slip keeps your pillow in place and meets hostel association specifications
  • Built-in antimicrobial treatment keeps odors at bay and won't wash out of the liner when you throw it in the washing machine
  • Double folded and reinforced seams add durability
  • Machine washable
  • Closeout

Imported.

View all Sea to Summit Sleeping Bag Liners

Technical Specs

Best Use

Camping

Sleeping Bag Shape

Rectangular

Added Warmth (F)

Unavailable

Stuff Sack Size

Unavailable

Material(s)

Stretch-knit polyester/cotton

Dimensions

88 x 36 inches

Weight

13.4 ounces

Reviews
21 reviews with an average rating of 4.6 out of 5 stars

Ratings Snapshot

Product Rating

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Minda S.
Rated 4.0 out of 5 stars

Soft but pillow case is too short

3 years ago

The material of the expander travel liner is soft and comfortable, like a nice sheet. It is so stretchy, however, that it gets twisted around me when I sleep. It almost looks like it has been sewn a little crooked, but I think that is just the material. My biggest complaint is that the extra material for the pillow is not big enough to cover a standard size pillow. I don’t know if that is normal for sleeping bag liners but that doesn’t make sense to me, since it makes it non-functional as a cover for a pillow.

Originally posted on Sea to Summit
Peyton L.
Rated 5.0 out of 5 stars

Great liner!

1 year ago

Used this liner with my sea to summit 0 degree bag. I really liked the texture and feel of the material. Very soft, but not that awful microfiber stuff. I don’t see it adding a lot of warmth. It got down to 30 degrees when I used this. I could not tell much of a difference when I took it out of the sleeping bag. It did a good job keeping my bag clean. It packs larger than I thought it would. That would be the only thing negative. It still packs down small.

Originally posted on Sea to Summit
Annelise F.
Rated 5.0 out of 5 stars

Expander Travel liner- perfect for all your adventures!

3 years ago

I got this for my son for Boyscouts instead of sending him with a much bulkier and heavier twin sheet set because we do so many hiking and camping trips where he carries his own weight. He used it on a 4-day trip where we hammock camped. To save weight, he packed only this liner, a small lightweight travel blanket that folds into about an 8” square pillow, and a sleeping pad for his sleeping system along with his hammock. The temperature dropped from about 80 degrees F to between 50-60 at night and he stayed perfectly comfortable. He liked the liner so much he used it in his bed at home and also took it on a week-long camping trip with the Boyscouts where they slept on cots. Both of us are very satisfied with the purchase. I’m so glad he’s not having to lug around a ton of weight and also so he has a layer to keep his top-layer sleeping gear clean. The ability to layer is what you need for colder trips and this is a great addition to his gear!

Originally posted on Sea to Summit
Gordon L.
Rated 1.0 out of 5 stars

Would like to have given 0 stars

5 years ago

This SeaToSummit liner was useless and balled up in the bag. I can't send it back because I did use it and so it has been tossed. I would have written the whole thing off as a bad deal but SeaToSummit continued to hound me (about six emails over two months) to write a view. I will not buy any more products from this company. 'Bye.

Originally posted on Sea to Summit
Bj
Rated 5.0 out of 5 stars

Friend referred me to using a liner in my bag after a camping trip. This liner seemed to be a good overall liner that could be used during any season.

7 years ago

The Expander Travel Liner was one of the best purchases I have made for camping. Foremost, the liner acts as a super soft sheet that adds comfort to any bag. Secondly, when it is cold, the liner adds warmth. When it is warm and the bag is open it acts as a thin sheet that is a seemingly perfect layer between skin and the air.

Originally posted on Sea to Summit
Kyle O.
Rated 5.0 out of 5 stars

Great Product - Super summer sleeping bag

2 years ago

[This review was collected as part of a promotion.] I loved this. It's lightweight and super soft and cozy for two people, or extra luxurious for one! It's now also my go to summer sleeping bag in warm climates (Utah, Texas, even New York etc.). Whish the bag it packs in was a bittt bigger and easy to pack in, so I'd give that a 3 star, but the product itself is definitely 5.

Originally posted on Sea to Summit
Ray G.
Rated 3.0 out of 5 stars

Was under the impression that

2 years ago

[This review was collected as part of a promotion.] Was under the impression that this liner would be sewn at the bottom and part way up the sides, it is not, It's a sack, sewn bottom and all the way up the sides. We cut down the sides to within 12" of the bottom to make this work for us. So far the material has not unraveled,

Originally posted on Sea to Summit
Brooke B.
Rated 5.0 out of 5 stars

Snuggles for days!

2 years ago

[This review was collected as part of a promotion.] Recently got a double sleeping bag and thought a liner would be a great addition! Fabric is so soft and comfortable and on some of the warmer eves in the desert it's all you need. Such a treat to be able to snuggle with my person, and have enough space to move around too!

Originally posted on Sea to Summit
Geoffrey E.
Rated 5.0 out of 5 stars

Travel with Kids

5 years ago

Bought for traveling with my two kids, these travel liners are perfect to keep my two kids sleeping on the same queen sized mattress when were are sleeping at a hotel. Nobody can touch each other and each has their own personal space and favorite color.

Originally posted on Sea to Summit
Elizabeth
Rated 5.0 out of 5 stars

To add some comfort, versatility and warmth to my sleeping set up.

7 years ago

The perfect liner for camping and travel. Super soft and comfy, nice in or out of the sleeping bag depending on temperature. The pillow insert brought everything together making it feel as if I were in a real bed. Easy to wash and packs down nicely.

Originally posted on Sea to Summit
1 - 10 of 21 Reviews

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