Cocoon MummyLiner

This liner adds approximately 9.5 degrees Fahrenheit (about 3 degrees Celsius) of warmth to your existing sleep system. It is designed to boost thermal performance without adding significant bulk to your pack.

Yes, the liner is specifically cut in a mummy shape to match the profile of most technical sleeping bags. With dimensions of 241 x 90/56 cm, it provides a tapered fit that prevents excess fabric from bunching up while you sleep.

Absolutely. The soft, breathable construction makes it an excellent standalone sheet for warm-weather camping or hostel travel where you need a hygienic barrier but don't require the insulation of a full sleeping bag.

Sleeping bags are difficult to wash and prone to absorbing body oils, sweat, and dirt, which can degrade the insulation over time. Using this liner keeps the interior of your bag clean, meaning you have to wash your primary sleeping bag much less frequently.

Yes, the liner is machine washable. Because it is made from a blend of microfiber polyester and silk, it is durable, dries quickly, and can be easily tossed in with your regular laundry after a trip.

It is highly packable. When compressed into its included stuff sack, the liner measures just 16.5 x 8 cm and weighs only 0.23 kg, making it a negligible addition to your pack weight.