Extremely lightweight and roomy sleep sack or sleeping bag liner for hotels, youth hostels, alpine huts, boats, planes and trains - with Insect Shield insect protection. Egyptian cotton is a rare, long fibered cotton that is spun into a fine yarn. The result is a very lightweight and soft, yet durable fabric. COCOON TravelSheets made of Egyptian cotton are substantially lighter and more compact than those of regular cotton. A great compromise between regular cotton and silk! Cocoon - Travels Sheet Insect Shield laguna blue