Greaton inflable air mattress has a comfort coil technology for added comfort and support for a better night's rest. It has a multilayer puncture resistant material for increased durability. Extra Thich and durable multilayer PVC makes this mattress extra durable and long lasting. Comfort Coil technology design reinforce the bed, while maintaining its shape and firmness through night. Grip technology prevents the bed from unwanted sliding during use and provides suction grip on hard, flat floor surface that are more prone to mattress movement when in use. The airmatterss is designed for in home use and is perfect for guests, friends, Kids or relatives. Tritech internal beams can withstand the stress weight and movement that come with a great night's sleep. Internal beams increased bed firmness and keeps its form and stays firm all night long. it also retains 10% more internal pressure. airmattresswithpump is easy to use and instant set up. Available size are 30", Twin, Full and Queen.