When they say "sleep like a baby", that's really just shorthand for "sleep like a baby on the Moonlight Slumber Shimmer Foam Crib Mattress". Designed to accommodate a growing child and their changing needs, this thoughtful, premium mattress features two sides; one side for the infant, and one side they can grow into as toddlers. On one side, you'll find soft, supportive, plant-based foam on one side, and gel-infused, temperature-controlling foam on the other side. Supportive foam side rails add to the overall structure of the mattress. Underneath the water and stain-resistant exterior is a woven fire barrier that's mineral-derived, rather than just being treated with harsh chemical sprays and solutions.