Coleman Queen Quickbed Air Mattress Combo with Pump Inflatable queen mattress ideal for camping or as spare bed ComfortSmart coil system with 48 coils and soft suede top Coleman's AirTight system guarantees leak-proof performance Heavy-duty PVC formula; includes 4D pump for easy inflation and deflation Fits standard queen sheets; measures 78 x 5 x 60 inches (W x H x D) Location, temperature, and humidity will affect the firmness of the airbed. Airbeds will need to be occasionally re-inflated (topped off) to maintain desired firmness upon initial use and when used for more than a few days as material tends to relax over time.