Cocoon’s TravelSheet is a simple solution to a common travel problem. It’s a cotton sleeping bag liner that creates a clean, familiar barrier between you and questionable hotel bedding or a well-used sleeping bag. The cotton is breathable and soft against your skin, which makes a tangible difference in comfort.

The double-size version is roomy enough for two or for solo travelers who dislike feeling confined. The side opening with Velcro is a practical touch. It lets you get in and out easily without wrestling with a narrow tube of fabric. Double-stitched seams reinforce the stress points, so it holds up to regular use and washing. Cocoon claims it can add about 5 degrees of warmth to a sleeping bag, which is a helpful boost on a chilly night.

It packs down into its own lightweight stuff sack, taking up minimal space in your luggage. The cotton construction is its main appeal for comfort, but it also means it’s not the absolute smallest or lightest liner available. That’s a fair trade for the feeling of a proper sheet on the road.