Leaper Self Inflating Thickened Moisture Proof Mattress in Black Size: Double; The snap button design can be infinitely spliced. Convex texture, waterproof fabric Automatic inflation by unscrewing the air nozzle Ergonomic design ensures a comfortable night's sleep. Stronger and less prone to punctures than other airbeds. Non-slip base helps avoid unwanted sliding, shifting and squeaking. Ergonomically designed to support your head and neck, improve spinal alignment and help ensure a comfortable night's sleep. Leaper Self Inflating Thickened Moisture Proof Mattress in Black Size: Double color: Black