We really wanted jetpacks and future-homes, but it makes sense that we use our modern technology to take care of our kids first, so let"s put that science to work with the Moonlight Slumber Starlight Support Standard All Foam Crib Mattress. As a durable, double-sided mattress, the quality starts in the center with a solid foam core and stabilizing foam side-rails. From there, one side of the mattress has a high-density foam bed for infants, and the other side has a more pliable foam bed to help support the joints and frames of toddlers. All of this is sandwiched together, and covered with a fire-resistant barrier, sealed with ultra-sonically welded seams, and a stretch cover of medical-grade mesh. This mattress is free of PVC, latex, and phthalates, and has a weight limit of 250 lbs. * Double-sided mattress that"s safe and comfortable * Infant side features a firm, foam bed * Toddler side has a softer foam for comfy support * Hypo-allergenic and flame resistant * Dimensions: 52L x 27.5W x 6H inches