With the Ultra-Fresh™ antimicrobial surface, your bed will be protected from the growth of odor-causing bacteria, mold and mildew on the sleep surface. The AlwayzAire dual pump ensures that your air mattress stays inflated all night long. Internal sensors monitor the air pressure, and the pump will silently reinflate the bed as you sleep to maintain the intended firmness. The dual pump system inflates the bed in just 3 minutes, reduces air loss and eliminates over-inflation. It also lets you customize the firmness of your mattress to one of three settings - soft, medium or firm. Plus, it includes a USB port for easy and convenient device charging. For best results, keep the bed plugged in all night. No power, no problem - this bed is also compatible with handheld pumps for inflation, but electrical power is necessary for the dual pump sensors to function properly. Constructed for lasting durability, this air mattress is made out of Tough Guard material. This fusion of PVC and polyester is a more comfortable sleeping surface, and it’s also stronger than traditional PVC, while still being 10% lighter weight. This durable material is also 75% more puncture resistant, 92% more stretch resistant, and 150x more scratch resistant. The woven material ensures that the bed doesn’t become too hot or too cold throughout the night, as commonly noticed with PVC beds.