If you camp or travel and want a little extra comfort and cleanliness in your sleeping bag, this Cocoon mummy liner is a smart pick. It's made from Egyptian cotton, which is known for those long fibers that make it super soft, lightweight, and durable – way nicer than regular cotton. It's shaped like a mummy bag (fitted at the feet, wider at the top), so it fits neatly inside your sleeping bag without bunching up. The big plus? It adds a layer of warmth, keeps your sleeping bag cleaner, and feels much nicer against your skin. It's also more compact and lighter than standard cotton liners, so it won't weigh down your pack. Great for hostels, camping, backpacking, or even as a light summer blanket. It's like a compromise between basic cotton and fancy silk – affordable but still high quality. Just toss it in the wash when you get home. A simple upgrade that makes roughing it a bit less rough.