Make bedtime more comfortable with the Simmons Cooltech crib mattress. This breathable mattress features a super firm core with a dual-sided comfort layer for growing toddlers. The cooling cover, infused with PE molecules, keeps the sleep surface cool and comfy. A waterproof Cooltech mattress protector is included for extra protection and easy cleanups. | Simmons Cooltech Anti-Bacteria Breathable Crib Mattress with Mattress Protector