The Clima Smart Foam Cotbed Mattress with its breathable foam core and unique dual layer Airwave system offers 2 different comfort levels. Finished in a soft touch Clima Smart, Heat Regulating Cover that prevents your child from overheating that can be easily removed for cleaning. Suitable from Birth. 10cm deep offering a comfortable and supportive sleeping surface as recommended on the National Childbirth Trust website. Dimensions: Mattress Length: 140cm. Mattress Width: 70cm. Mattress Depth: 10cm. Weight: 5kg. .