COCOON Silk Mummy Liner
Use the COCOON Silk mummy liner on its own in warm climates or put it inside your sleeping bag to add some extra warmth on chilly winter nights.




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- Liner protects and keeps your sleeping bag clean, and can add up to 8.4°F (5.3°C) to the temperature rating of your sleeping bag
- Use it alone in warmer climates or when spending the night in a hostel; silk feels cool in the summer
- Hand or machine wash the with mild soap; drip dry or tumble dry on low
Imported.
View all COCOON Sleeping Bag LinersBest Use | Backpacking |
---|---|
Sleeping Bag Shape | Mummy |
Added Warmth (F) | Up to 10 degrees |
Added Warmth (C) | Up to 5.3 |
Stuff Sack Size | 3 x 6 inches |
Material(s) | Silk |
Dimensions | Natural: 95 x 35/22 (L x W shoulder/foot) inches Leaves: 83 x 35/22 (L x W shoulder/foot) inches |
Weight | 4.7 ounces |
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So comfortable but weak as tissue
I agree with others that the material is perfect as the only bag on warm climates, and surprisingly warm when added to a bag when it's cold. The feather weight is so comfortable.... BUT the light weight comes at a big cost. It tears like tissue paper. I've sewn this thing back together several times and finally had a seamstress remove several shredded inches from the bottom and re-sew it - which only works because I'm short. The foot box is way too narrow, so and I sleep on eggshells because I can tear it when I turn over. Even a fingernail can slice the fabric. So sad because I love it and still take it everywhere I travel. I've gotten used to cringing when I hear it rip in the middle of the night.
A little tricky for hammocking
I think this product works in every way it's advertised to. It surely protects your sleeping bag or quilt, and a temp rating bump of ~5F seems reasonable based on a couple chilly nights below freezing with it. Having said that, I camp in a hammock and bought it for keeping my hammock and top quilt clean (from me) and it does require some gymnastics to get situated in it while in your hammock. I found this feasible as I went to bed, but after a trip to water the trees in the night it was mission impossible. It was hard to even find the entry point which could maybe be marked somehow (I might look into that myself). I'll be giving it a few more tries to see if it becomes a part of my kit - or not.
Surprisingly good
It was supposedly Spring, yet I figured I'd bring this silk mummy liner along with my lighter weight down bag - just to try it out. I'm glad I did. My bag was rated to 40 F, and the temperature dropped to that. The silk liner made it comfortable, and probably added a couple of degrees of warmth. If it was hot in the Summer- it would be great to use and sleep on top of the sleeping bag. I'll try that next. Unpacking it was easy, but I was surprised in the morning how easily I was able to just stuff it back into its little sack. It's exactly like a magician stuffing a silk handkerchief into his hand. Poof! Gone. When I got home, I unstuffed it, and refolded and rolled it back into the bag. I love its compact size and extremely light weight. I'm planning to walk the El Camino de Santiago in Spain, and I am definitely taking this for use in the pensiones and guesthouses. It's also a nice way to keep your sleeping bag like new by using a liner like this.
Warmer and Cleaner
First off I have a very inexpensive 5 degree sleeping bag. I was wearing a base layer, outer clothing and an extra layer of flannel. A thermal rest all season pad. I was cool but not cold. I was at 10,500 ft in Oct in Crestone,CO. The silk layer added about 3 to 5 degrees Fahrenheit. My sleeping bag has stitching all the way through. The silk layer evened out the cold spots and kept the bag clean. There was a layer of ice on the tent when I woke up. Overall I would recommend the liner for someone who was trying to extend their sleeping bag by a few degrees or trying to keep the sleeping bag clean.
Fantastic Material. Poor Assembly.
The silk material of the liner is amazing for humid Southeast US nights. Wicks sweat like a dream and kept me comfortable up to 80 degrees F. Very packable. BUT. Stitching is pitiful. Seams unraveling everywhere from the moment I took it out of the packaging. I repaired the first few loose threads but after finding SIX more lines of stitching coming undone after just 3 nights' use, I'll be returning this. I paid full price in store ($60-ish), and this is a problem I would only expect of a $15 or less item. Extremely disappointing given how comfortable the product is otherwise.
Perfect for Travel, too
I bought my Cocoon in 2010 because of its light weight and small size. When I travel I just throw it in my bag. I use it when there is no top sheet provided or I'm in a friend's home and don't want them to have to wash sheets for my 1-night stay. I also use it when it's too warm in a hotel or hostel to use the blankets. I've washed it in the washing machine with no ill effects. It's one of my most valuable travel accessories, not the least of which is it provides assurance I won't need to be grossed out if I end up at a grungy hostel.
Great while it lasted but fragile.
I wanted to keep my sleeping bag cleaner, use it only when it was hot and keep weight down. In use, I sometimes got twisted up in the fabric and it was not as durable as I hopped and the fabric literally disintegrated. The fabric was too damaged and light weight for me to sew back together. Trying to lighten my pack with lighter equipment has it drawbacks. Photo below is the foot of the liner.
Good, but short lived.
I've owned 3 or 4 of these through the years. They are very light and very comfortable, plus they make keeping your expensive sleeping bag clean MUCH easier. The problem with them is that I've owned 3 or 4 of these over the years. They do not last very long. If I get two or three seasons of moderate use out of them, I'm doing good. I'm a restless sleeper, so if you are a quiet sleeper, your mileage may be better. Repairing only goes so far, as the main problem is that the material itself unravels along the seam. I am trying a Sea to Summit Thermolite Reactor this time, about twice as heavy, but hopefully it will last longer. Sea to Summit also makes a silk liner with a stretchy panel along the seam - never tried it, might help.
Ounces, Dollars, Comfort - Which comes first?
I just bought this to replace one purchased over ten years ago because that last one ripped. A long time ago, after sleeping in my bag for three months straight, I took a sheet, and sewed it into a tapered sack. 18 oz. Well worth the cost, and well worth the weight to not to have to peel the sleeping bag from me each morning after a week on the trail. This one weghs 4 1/4 oz. It is soo much better to rinse out a liner than to rinse out a downbag. The one I bought ten years ago was from an overstock company and cost less. I never saw one available at that price again. This one, aside from the color, is the same item (OK, one weighs 2 grams more than the other) - This weighs less than a pair wool bootsocks! If you take extended journeys, and resent any additional ounces on your back, this is well worth the dollars.
#1 Item I pack backpacking
This item is not for warmth, it’s for hygiene. When I travel overseas or camping during bug infested months, I always bring my cocoon. I am the only one of my friends who is not ravaged by the insect that flew in or the spider dwelling at the bottom. I don’t have to worry about how clean or stiff the sheets are. Wash by hand or dry clean, do not wash in a machine or yes, the delicate seams will rip. I have had mine for over 8 years, use it a few times a year and is in perfect condition.