Just as described and cleverly designed! Seems to serve the intended purpose! I was able to fit a queen sized pillow in the attached pocket and climb in (I’m 5′ 10″ and bought a Medium). The fabric is essentially the same a standard bed sheet, but sewn almost fully shut except for a flap near the top (pictured) that has some plastic clasps to secure it. I’ve never seen clasps like these (also pictured) but they were intuitive enough to figure out. I haven’t yet had a chance to try it out inside a sleeping bag, but it does seem…

Perfect size and keeps my sleeping bag clean(er) I bought this based on a recommendation from Wirecutter to use a liner to reduce the need for washing my sleeping bag. Washing sleeping bags is a huge pain, so it was worth a try. The sheet smells like it came straight from the manufacturing factory without being thoroughly washed, but a quick run through the laundry machine fixed it (you probably shouldn’t be using linens without washing it first anyway). The quality was what I expected for the price and the size was perfect to fit in my bag…