EBayThe essential layer you need between you and your mattress. Using NASA-approved temperature-regulation technology, it keeps you cool before youre hot, warm when things chill down, and from ever sweating in the first place. Skip purchasing a new mattress, adjusting the thermostat, or building a complex bedding system to get a more comfortable sleeping temperature. The Essential Mattress Pad delivers premium temperature-regulation without the hefty price tag of those other solutions. Features: Premium NASA-approved fabric absorbs, stores, and releases heat for premium temperature-control; Luxury 100% down alternative fiber-fill; Oeko-Tex Standard 100 Certified Technology; It keeps you cool before youre hot, warm when things chill down, and from ever sweating in the first place; Abrasion tested to ensure performance night after night, year after year with 20,000+ passes; Fits any mattress up to 20"; Easy to Care For: Just throw it in your home washing machine; Technology: technology is a unique material capable of maintaining and regulating your temperature. As your skin temperature increases, the technology absorbs heat, then releases it when your skin temperature drops, so you sleep "just right." Materials: Our premium lining fabric takes a proactive approach by employing active temperature control properties, versus other "cooling" bedding that is moisture-wicking and simply reactive. Benefits: materials improve comfort for: Anyone looking for a more comfortable nights sleep - theyll sleep cooler!; Women experiencing menopause - hot flashes and resulting night sweats are reduced so they sleep cooler and drier.; Thermally incompatible couples - individuals sleep at their own ideal temperature; Research: We pass on everything we learn to our customers. From sleep studies to new technologies, we want to help you make informed decisions about your sleep. Size Guide: Twin: 39" x 75"; Twin XL: 39" x 80"; Full: 54" x 75"; Queen: 60" x 80"; King: 78" x 80"; Cal-King: 72" x 84"; Split-King: 2 x 39" x 80"