Only Tempur breeze mattresses are cool when you lie down, cool when you fall asleep and cool all night long. Our breeze mattresses were designed in our thermal laboratory to help manage micro-climate between your mattress and your covers for a cooler, keeper sleep all night long. Research suggests a cooler sleep environment helps you fall asleep faster and stay asleep longer with less tossing and turning for better quality sleep. TEMPUR-PRObreeze™ Series Cutting-edge cooling for all-night comfort. The all-new TEMPUR-PRObreeze™ feels 3 degrees cooler throughout the night – for deep, uninterrupted sleep.* The all-new TEMPUR-PRObreeze™ has a 3-level system of cutting-edge materials that work together from cover to core to keep you cool all night long. The zip-off cover provides cool-to-touch comfort when you lie down, while exclusive PureCool+™ Phase Change Material absorbs excess heat while you fall asleep and TEMPUR-CM+™ provides maximum airflow and breathability throughout the night.. Note:  Split Cal King is made up of 2 pieces. You must select a quantity of 2 for these sizes for a complete set. Mattress Top Type: Tight Top Mattress Type: Memory Foam Included: 1 Mattress(es) Features: Breathable, Antimicrobial, Fire Resistant, Removable Cover, Temperature Regulating, Foam Layer, Cooling Layer, Cushioning Layer, Adjustable Base Compatible Additional Information: Suitable for Adjustable Bed Frames, Eliminates Motion Transfer, Conforms To Body, Relieves Pressure Points Coil Count: 1160 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Queen Measurements: 12.4 Height/Inches, 60 Width/Inches, 80 Length/Inches Base Material: 100% Polyurethane Comfort Type: Cushion Firm Care: Spot Clean Certifications And Listings: Cpsc - 16 Cfr 1633 Compliant, Cpsc - 16 Cfr 1632 Compliant Mattress Height: 12.5" Country of Origin: Made in US Includes mattress only. Mattress plus box spring option also available.  This mattress meets the requirements of 16CFR Part 1632 (federal flammability (open flame) standard for mattresses and mattress pads This mattress meets the requirements of 16CFR Part 1633 (federal flammability (open flame) standard for mattress sets) when used with foundation