Bestway Air Mattress, Full Size With Built-In Foot Pump And Pillow Inflatable Mattress For Indoor And Outdoor Use Double

Size: 191 x 137 x 28 cm, for 2 people Integrated foot pump ideal for outdoor use heavy duty PVC Comfortable flocked lying surface Contents: 1 air bed, 1 repair patch Note: Air temperature - when the air in the bed is pumped at high pressure, the temperature increases. As the molecules heat up and move faster, they move apart. Thus, air, like most other substances, expands when heated and contracts when cooled. Because there is more space between molecules, the air is less dense than surrounding matter, and hot air floats upward. As the air cools, after pumping through the pump, the air contracts causing the air mattress to feel like it is deflating and if the user applies more air to the bed, the pressure will become more stable over time. Includes A Built In Pillow And Foot Pump Helping Ensure Comfort And Convenience To Ensure The Finest Comfort, It Has A Soft Flocked Surface Offers A New Sid-Valve (Smart Inflation/ Deflation Valve)