13" KING FIRM COOLING FOAM MATTRESS: Provides the perfect balance of luxurious, cooling comfort and optimal support with a firm feel to help you get the blissful night of sleep you deserve CONFORMING SUPPORT: Delivers 30% more conforming support than ProAdapt and maximum pressure-relieving power with superior motion cancellation for the ultimate TEMPUR experience PRESSURE-RELIEVING FOAM: NASA-engineered TEMPUR material adapts to your unique shape for ultimate relaxation and retains its shape for years, offering superior support at night and alignment after a year PROTECTIVE YARN COVER: Cool-to-the-touch cover crafted from double the ultra-high-molecular-weight yarn quickly moves heat away from your body and can be easily removed and machine washed as needed KING SIZE: Measures 80" L x 76" W x 13" H and is our best-rated sleep innovation, backed by a 10-year limited warranty and millions of satisfied owners