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  • Sea To Summit - 100% Premium Silk Sleeping Bag Liner - Berry
  • Sea To Summit - 100% Premium Silk Sleeping Bag Liner - Pacific
  • Sea To Summit - 100% Premium Silk Sleeping Bag Liner - Pacific
  • Sea To Summit - 100% Premium Silk Sleeping Bag Liner - Navy

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  • Sea To Summit - 100% Premium Silk Sleeping Bag Liner - Berry
  • Sea To Summit - 100% Premium Silk Sleeping Bag Liner - Pacific
  • Sea To Summit - 100% Premium Silk Sleeping Bag Liner - Pacific
  • Sea To Summit - 100% Premium Silk Sleeping Bag Liner - Navy

Sea To Summit 100% Premium Silk Sleeping Bag Liner

$69.95 - $119.95

Free 2-Day shipping on orders over $50*

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  • Select options
    • Berry, Rect/73x36in
    • Pacific, Rect/73x36in
    • Pacific, Rect with Pillow Case/88x36in
    • Pacific, Hooded Mummy/82x36in
    • Eucalyptus, Rect/73x36in
    • Eucalyptus, Rect with Pillow Case/88x36in
    • Navy, Double/73x73in
    • Navy, Rect/73x36in
    • Navy, Rect with Pillow Case/88x36in

    14 Reviews


    Four-star comfort wherever you roam.

    The Sea to Summit 100% Premium Silk Sleeping Bag Liner brings the silky, soft comfort whether you're camping, backpacking, or traveling from hotel to hotel. Premium AA-grade ripstop silk keeps you unbelievably comfortable for how durable it is, and gussets allow this liner to move with every toss and turn. Sea to Summit reinforced the seams for excellent longevity so this liner can protect you from the disgusting germs in hotel beds for a long time, and you can toss it in the washing machine for an easy clean when you get home.

    • Premium AA grade ripstop silk
    • Gussets
    • Reinforced seams
    • Machine washable
    • Item #STS001B

    Tech Specs

    Manufacturer Warranty
    Recommended Use
    camping, backpacking, sleeping
    Claimed Weight
    [rectangular] 4.6 oz, [rectangular with pillow case] 6 oz, [hooded mummy] 4.8 oz, [long rectangular] 5 oz, [double] 9 oz
    [rectangular] 73 x 36 in, [rectangular with pillow case] 88 x 36 in, [hooded mummy] 82 x 36 in, [long rectangular] 82 x 36 in, [double] 73 x 73 in
    [main] ripstop silk, [gussets] polyester, Lycra

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    So soft

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

    I had used one of these before (that I borrowed from a friend) and loved it so much I decided I had to have one! I was surprised how much warmer it kept me at night, and I love how soft and comfortable it is!

    Colorado Trail Liner

    • Familiarity: I've put it through the wringer

    Took this liner on the Colorado Trail to prolong to life of my down sleeping bag. Worked perfectly to add a little warmth every night, as well as keep my sleeping bag clean. I changed clothes once in 24 days and the bag stayed in pristine condition, and the best part was that after one wash the liner was good as new, even with all the abuse it was put through. Super lightweight, and would recommend to anyone who doesn't want to destroy their down bag, add a little warmth, and overall have an excellent as well as lightweight product.

    Makes Me Feel Sophisticated

    • Familiarity: I've used it several times

    I don't think I'll ever be fancy enough for silk sheets, but the sleeping bag liner is an excellent alternative. Super soft and comfy! The stretchy side panels are a great touch–you've got a little more room for getting in and out of the liner, and for rolling around if that's your thing. Besides actually using the sleeping bag liner as a sleeping bag liner, I'll definitely bring it along on non-camping vacations. Highly recommended.


    • Familiarity: I've put it through the wringer

    I love these bags. They are great for adding a little extra warmth to you sleeping bag. What I really like them for is traveling. Keep it in your carry-on so you have a light weight blanket on the plane. It worked really well in Indonesia to keep me off some of the questionable places I was sleeping. It also made a nice light sheet and helped wick sweat on hot humid nights in the jungle.

    Light and Feels Good

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

    I got this liner to pair with my new WM bag to help extend the life of that product, so that I can just wash this liner as opposed to the whole bag. It does feel really good against your skin, and the stretch panels keep it from feeling too constricting. I also like how light it is and easy to pack away in the included pouch.

    Heaven to climb into

    • Familiarity: I've put it through the wringer

    I purchased my Sea to Summit liner in preparation for an extended trip abroad. Given that I largely use it in hostels and on trains, I chose the "traveler" model, which includes a pillow case. For maximum temperature flexibility and comfort, the silk fabric was the way to go.
    First things first, let me just say that this thing is heavenly to climb into. It is incredibly lightweight and soft, with good temperature control and a luxurious feel. The bag is roomy and easy to get in and out of. At the end of a long day, it's just amazing.
    Practically speaking, the sack is surprisingly packable and lightweight. It takes up about the size of two pairs of wool hiking socks, and therefore is a reasonable addition to even limited luggage. In my eyes, this is not a full-on necessity, but makes travel more comfortable. It has also doubled as a window cover, a lap blanket, and a privacy screen during this trip.
    I intend to use the liner later on inside an actual sleeping bag while on a backpacking trip. I haven't used it yet, but I am confident that the material will hold up. Although this is not a mummy bag style liner, the pillow case easily flips inside out, and will likely fit easily into the hood of my regular sleeping bag.
    One negative of this bag is that it does tend to get twisted if you roll around in your sleep. I'd say this is to be expected, but is still worth nothing. I've never minded giving an easy kick to free my legs, but do be aware that it may tie you up a bit.

    Very light and comfortable

    • Familiarity: I've used it several times

    I was initially concerned about the stretch panels but they are strong, not at all flimsy as I was worried they might be. They do definitely add to the comfort of the sleepsack. I believe I now prefer the stretch panels over the Velcro tabs of my now thread bare poly sleep sack.

    Silk is the way to go if you are able. Light, excellent in all temps, great odor control (naturally), and durable. I will definitely buy this again if I should happen to wear this one out.


      Couldnt find my dated silk liner for a trip so broke down and bought this. As silk liners go, don?t think you could get much better. Its thin and light. The spandex sides seem to give some extra flex and movement (I slept IN this liner, on an exped mat, with a UL sleeping bag draped over as a blanket on a recent desert trip?setup was comfy and warm. My other silk liner has a slit down the side with Velcro to attach up the side?minor annoyance for me but I spent a decade being itched/irritated by the Velcro patches as I stirred/moved at night. This one has no such slit/Velcro/zipper but does afford ample movement. You will, however, have to enter/exit the liner on the end rather than exit the side as you would your bag. Again?the spendex side panes afford plenty of movement to be able to get in & out easy enough.

      What do they mean when they are talking about "stretch panels?"

      What warmth does this liner add to a sleeping bag? The Reactor Extreme specifically says 25 degrees F..

      I've been looking at the Sea to Summit Thermolite Reactor Extreme Mummy Bag Liner, and plenty of reviews from users who've field tested it say it doesn't get anywhere near the added "up to 25 degrees F" warmth claimed in the specs. Compared with that product, how much added warmth can we expect from the silk liner? Are we sacrificing comfort for warmth, or is silk a win-win, with the caveat that it's more expensive?