Sleep cool and comfortable with the Sleepery Kids 8-Inch Queen Memory Foam Mattress. Designed exclusively for Max & Lily bunks, lofts, and beds, this Sleepery Kids mattress is the perfect fit for growing sleepers and their setups. The innovative three-layer design combines superior breathability with the plush feel and medium-firm support that’s perfect for younger ages. Sleepery Kids’s compact comfort construction provides all the comfort of a 10-inch queen mattress without the bulk. This low-profile queen mattress provides extra headroom and guard rail space on bunk beds and loft beds. The top layer of Comfort Cushion Memory Foam provides a delicate, sink-in feel without sagging. The memory foam layer cradles your body and conforms to your sleeping position, reducing motion throughout the night. The Comfort Support layer provides the perfect balance between plush and firm. A layer of Dynamic Support Base Foam provides extra durability and structure to the queen-size mattress. The breathable mattress cover is made with a cotton blend for a comfortable, plush feel. Cotton blend also provides the mattress liner a safe, fire-retardant design without the use of fiberglass and chemicals. This queen mattress for kids is hypoallergenic to keep your sleeping space cleaner and fresher for longer. This CertiPUR-US certified, hypoallergenic kids queen mattress is made with non-toxic, eco-friendly materials and is low VOC, contributing to a clean and healthy sleeping space in your home. This mattress in a box comes compressed and rolled for an easy setup. We recommend letting the 8-inch queen mattress air out and reshape for 24 hours before use. This Sleepery Kids kids' mattress is designed to work perfectly with Max & Lily bunks, lofts, and beds – providing enhanced breathability and longevity when paired with wood slats. We cannot guarantee this queen mattress will fit trundle beds from other brands.