Wake up refreshed after a great night's sleepin any positionon this medium-firmness mattress from Tuft & Needle. Responding to your body weight, Flex Foam cradles you in comfort unique to you. The Release Foam relieves pressure, while the bounce-back Adaptive Foam base contours to your body without letting you sink. Designed with cooling technology, the cover allows for airflow to keep you cool throughout the night.