Sleepme OOLER Sleep System – Cooling & Heating Mattress Topper, Automated Temperature Changes: 55-115°F (Half Queen (80" L x 30" W) Off-White In Perfect Working Condition + Professionally Cleaned! $799 RRP! About this item WIDEST TEMPERATURE RANGE: Our water-based system will cool or warm your bed to your ideal sleep temperature (between 55-115°F). [*Not meant to replace conventional A/C. Peak operating performance can be affected by ambient temperature and humidity.] FITS ANY BED: Our mattress topper conforms to any size mattress from a queen to a cal king, even adjustable beds! Our half bed size (ME) is made for 1 sleeper. The full bed size (WE) is made for 2 sleepers with dual-zone temperature control so each sleeper can sleep at their ideal temperature. DUAL SIDED MATTRESS TOPPER: Our dual-sided mattress topper provides a Cool Mesh side (100% Polyester) which provides maximum cooling effect, while the quilted cotton-blend (52% Cotton / 48% Polyester Woven Blend) side produces cool comfort. SCHEDULE AUTOMATED TEMPERATURE CHANGES: Flip your “sleep switch” with warmth to trigger sleep, then schedule cool comfort for deep sleep support all night long all through our mobile app. DISCREET IN SIZE AND EASY TO CLEAN: Easily place your control unit at the head or foot of the bed, on a nightstand or shelf. The unit’s sleek design easily fits under bed frames over 6.25 inches in height. Our mattress topper is 100% machine washable and dryable.