Freedom Sleeper Folding Cot on Wheels The headrest can be set at several positions for reading or casual relaxation or bring the headrest down flat for sleeping comfortable 4 inch mattress is supported by a European Designed Wooden Slat System This stowaway bed is made of a light tubular bed frame with wheels for easy mobility. The dimensions are: 31" wide x 74" long frame with 4" high mattress.