The TEMPUR-Ergo® ProSmart® Air Base was made to be used with the <a href="" title="Shop The TEMPUR-ActiveBreeze® mattress">TEMPUR-ActiveBreeze® mattress</a> (Sold Separately). The ProSmart® Air Base uses specially designed fans to quietly circulate cool or warm air directly from the base and up through the mattress providing a sleep temperature range of up to 30 degrees*. In addition to helping to keep you cool all night long, the base includes all of the most advanced smart base features to help you fall asleep and stay asleep. Like Automatic Snore Response™ which detects snoring and then adjusts to reduce it and Enhanced Lumbar Support with nearly unlimited ergonomic postions for truly personalized comfort. Enjoy relaxation features with the Soundscape™ Mode or preset Wind Down® Programs featuring Wave Form™ Massage to help calm your mind and body so you can drift peacefully off to sleep.