NEVER FLAT TECHNOLOGY: Our Serta twin air mattr has 2 iat pumps. One handles rapid iat and deflat at the turn of a dial. The secondary silent air pump will allow you to set your desired firmn of the iatable bed. Then if the bed loses air during the night the silent secondary pump will automatiy turn on and retain your desired firmn. Here at Serta we want to you or your guest ts a restful nights sleep! PREMIUM CONSTRUCT: Constructed with heavy-duty waterproof puncture-resistant materials. This Air bed sits tall like a tradital bed,futon,or sofa bed. At 18" tall any guest should be able to t in and out of this guest bed with ease. This portable twin air mattr with built-in pump is a premium sleep solut for anyone looking for the night's sleep. SOFT AND SUPPORTIVE: This luxury twin air mattr uses independent coils to allow for a firm yet supportive sleeping experience. This premium twin iatable bed houses 21 coils. The floing on the surface of this blow up bed creates a plush and breathable membrane that is fortable to the touch or ses your sheets all night long. Here at Serta we want to you or your guest ts a restful night's sleep! READY TO GO: The Serta Never Flat Raised twin air mattr is ready for anything whether you are cping out,sleeping over,or hosting a house full. This blowup bed pas down small for stora and transportat. The included stora tote bag is oversized so paing up the air mattr is easy. The airbed also es with a built-in cord stora box. This makes your self-iating air mattr the portable bed you could ask for. 2 YEAR PEACE OF MIND : What good is an air mattr if it’s not ready at a moment’s notice? Hassle-support for 2 full years,the Serta Twin Never Flat air mattr is built to last,and designed with regular use in mind. Contact our te for prompt service or to answer any s. Two pumps in one bed,patented neverFLAT pump system silently keeps your airbed iated all night Primary pump automatiy iates and deflates your airbed in l than 4 minutes,secondary neverFLAT Pump monitors and silently maintains the air prure to your desired fort level while you sleep.