Cooler air will enter through the many small holes that go down through the surface of the memory foam and out through the convoluted channels on the firmer base foam. If your body type generates extra heat or you just want to sleep cooler, all our memory foam beds come with the option of adding on our patented Airflow Transfer System, which allows cooler air to flow in two directions even when you sleep in the same position all night. Happy customers report that they love being able to adjust the feel of the mattress just to their liking. Still, many reviewers seem to feel that theyre worth the price. Youll pay about $899 to $4,299 for a queen-size mattress. Sleep Number mattresses are pricier than many nonadjustable mattresses. Sleep Number Bed Reviews – Everything There Is To Know!