The nature of the mattress cover plays an important role in your baby's natural sleep rhythm. Above all, moisture caused by night-time sweating must be wicked away effectively. The babybay® Classic Fresh Premium cover ensures optimum air permeability, prevents accumulation of heat and thus offers reliable and hygienic protection against moisture and humidity. The wonderfully soft hygiene cover adapts perfectly to the shape of your baby's body thanks to the elaborate quilting in a star design, and it provides support, thus ensuring your baby has a deep, long, restful and dreamy sleep. So your baby is always comfortable. The cover can be easily removed at any time thanks to its three-sided zip fastening and is washable up to 60°C. All mattress covers are tested for harmful substances and are awarded the "Confidence in Textiles" certificate in accordance with Ökotex Standard 100 Class 1 for babies (12.0.03346).