The Perfect Sleep Pad and the chiliPAD performed similarly in our tests. It earned an Excellent in our cooling test, a Very Good in our heating test, and a Good rating for precooling and preheating. All of this makes it almost as perfect as its name suggests…

You can purchase a vest, knee pad, foot pad, or lumbar belt that also has water tubes that can be cooled or heated. You get a 90-day trial period, a 90-day warranty on the pad, and a two-year warranty on the control unit.