Bestway AlwayzAire Comfort Choice - a comfortable inflatable mattress for 2 people with perfect firmness throughout the night. Ideal for a restful sleep, Bestway's AlwayzAire inflatable bed is the assurance of a night spent on a mattress of constant firmness! This mattress with integrated electric pump (220-240V) automatically inflates to the desired degree of firmness (3 degrees available) within 180 seconds. It is also equipped with a dual electric pump system and an internal sensor that monitors the pressure level of the bed in real time. With this equipment, any loss of air can be corrected automatically using the second pump, so that the mattress adjusts to the desired degree of firmness: thus, it allows optimal comfort throughout the night, for a restful sleep.