I purchased 2 of these, 1 each for my 12 year and 8 year old to use for camping. They used to share a queen sized air mattress, but they would always fight with the other about "hogging all the room on the bed" lol. That old queen mattress finally sprung a leak, so I decided to try these out. They are not very wide, but the length was perfect for the kids. They used them this past week, and said they were pretty comfy for air mattresses. I wouldn't think an adult would be very comfortable sleeping on these, as they are small... smaller than a twin-sized mattress. The width is too narrow for an adult, and when I lied down on one of them, my ankles and feet hung over the end. (I am 5'8".) They are a decent thickness and were not difficult to blow up by mouth... plus, the price was nice! I would buy these again:)