Insta-Bed Raised Air Mattress with Insta III Pump Integrated Insta III AC pump inflates and deflates with ease and is 20% quieter than most other airbed pumps Durable flocked top provides a soft and comfortable sleep surface that also keeps your sheets in place Raised height makes getting into and out of bed easier ; Included carry bag for convenient storage and travel Made from quality materials that are puncture and water resistant to ensure a long life ; Available in queen or twin size Queen size inflated dimensions are 78"x60"x15". Twin size inflated dimensions are 74"x39"x15" 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 Please inflate your mattress according to the included instructions. Note that the material may stretch during the first several uses. It is recommended to inflate your bed at least 1 hour prior to using or measuring it. Extra air may be required after this period to achieve full firmness.