The Bestway? Tritech? Air Mattress 15 in. tall, twin-sized bed promises strength, durability and comfort all night long. Its compact size and built-in pump make it quick and convenient for use whenever you need it. Plus the Ultra-Fresh? antimicrobial surface will be protected from the growth of odor-causing bacteria, mold and mildew on the sleep surface. Durable Construction: With a comfortable sleeping surface and sturdy construction, a great night s sleep is right around the corner. The internal structure of this bed is made with Tritech? material offering durability and strength, while also allowing the mattress to keep the same shape no matter how many times it's inflated and deflated. Specifically engineered for firmness, this material minimizes air loss throughout the night.