【Suitable for】This bassinet mattress compatible with RONBEI, Ingenuity, Cuddor, Arm’s Reach Clear-Vue Co-Sleeper, QUTANIX, Dream On Me Poppy Bassinet. The bassinet mattress measures 32" x 18" x 2''. Please measure your bassinet mattress before you buy. | 【Dual Sided Firmness】Baby bassinet mattress has dual-sided firmness to provide support and comfort for babies at different stages of growth. The softer side features cooling gel memory foam; the firmer side features high-density support foam. | 【Removable and Washable Cover】The bassinet mattress cover is made of 35% Tencel and 65% Polyester fabric. It has a zipper so you can easily remove the cover for machine washing to keep your mattress clean and fresh. | 【Waterproof】The inner surface of the bassinet mattress cover is covered with a high quality TPU waterproof membrane. that repels all other liquids, including fluids, perspiration, bed wetting, and stains. The waterproof feature protects the mattress and keeps it looking brand new. | 【Expand and Washing Instruction】Please wait 24-36 hours for the foam to expand after opening. Gently unzip the cover and machine wash on a low, delicate cycle, then air dry.