For the utmost comfort and portability, sleep on the AeroBed PakMat Twin Air Mattress. This air mattress gives supportive sleep in any environment. Pack it along easily, without the bulk of a heavy vinyl airbed. There's no need for electricity because this mat inflates through a battery-free pump with a simple pumping motion. Since the mattress is made from phthalate-free material and reinforced with heavy-duty polyester, it can be set up on just about any surface for a durable and restful night's sleep. Weighing only 4 lbs, this compact mattress will only improve an excursion. It inflates in about 1 minute without any batteries or external power needed.