Outlast® technology offsets and balances temperature fluctuations throughout the night, regulating the micro-climate of the bed for optimal REM sleep. Think of it like ice in your drink. As ice changes from solid to liquid, it absorbs heat and cools your drink. Outlast® phase change materials work in the same way, but are microencapsulated to be permanently enclosed and protected in a polymer shell.

• NASA developed technology

• "Not too hot, not to cold" micro-climate

• Regulates and auto-corrects temperature