The technology that started it all, redesigned for today. The TEMPUR-ProAdapt™ hybrid split California king mattress sports superior cool-to-touch comfort, two layers of premium TEMPUR® technology and superior spring coils all working together to continually adapt and conform to your body’s changing needs throughout the night. The support layer relieves pressure and reduces motion. This mattress relaxes you while you sleep, so you’re rejuvenated during the day.