Protect your Bloom mattress with a Alma Urban Mini Mattress Protector. This protector fits both Alma Urban Mini mattresses, so you can use it with the Alma Urban Mini Crib Foam Mattress or the Alma Urban Mini Crib CocoMat Mattress. This mattress protector fits snugly around the top and edges of the mattress. Thanks to the unbleached and undyed cotton cover, your baby breathes only natural organic cotton – not the chemicals or dyes that are sometimes used in bedding. The 100% organic cotton material is treated with an entirely kid-safe hydroguard protective barrier to keep the mattress dry and clean. Despite its waterproof qualities, the Alma Urban Mini Crib Mattress Cover is breathable. The waterproof membrane allows air to flow through the material, so your baby can stay cool and comfortable.