Insta-Bed Raised Air Mattress with Never Flat Pump Perfect purchase for a gift. Material: PVC Great craftmanship A must buy item KINDLY NOTE : Please refer the USER MANUAL attached below for reference Two pumps in one bed. The patented neverFLAT pump system silently keeps your airbed inflated all night. Guaranteed! The primary pump automatically inflates and deflates your airbed in less than 4 minutes. The secondary neverFLAT Pump monitors and silently maintains the air pressure to your desired comfort level while you sleep. Convenient auto-shutoff feature on primary pump automatically turns the pump system off when the airbed is fully inflated or deflated 35 circular coils on the Queen size and 21 circular coils on the Twin size create a strong, supportive, and level sleep surface 18" raised height makes getting into and out of bed easier; Included carry bag for convenient storage and travel Inflated Dimensions- 80 x 60 x 19 inches 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. For items featuring the NeverFLAT pump system, this extra air is added automatically. All mattress measurements should be taken from the center of the bed surface. For width and length, measure across the bed from the center of each side from widest point to widest point. For the height, measure at the center of the longest side from the ground to the highest point of the bed surface. Questions? Please email our Customer Service Team at help@americanrec.com or by phone Monday-Friday 9 AM - 5 PM CST at 1-800-325-4121