The nature of the mattress 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 hygiene cover of the Climate Extra Airy mattress effectively prevents moisture from getting through, but is still permeable to air. You do not need an additional water-repellent layer. The air ducts in the comfort foam core ensure increased air circulation. The better oxygen supply prevents dangerous accumulation of heat. The reinforced step edges on the sides prevent the bed from folding over when your baby tries to stand, thus ensuring the greatest possible safety against slipping in bed. The foam core adapts ideally to the shape of your baby/child's body thanks its climatised cover, which has elaborate quilting in a star design and is highly elastic, ensuring a deep and dreamy sleep. So your baby/child 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 mattresses 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).