German Technology. 100& Air Mesh Washable Three-dimensional polyester fiber space fabric created by a German machine as the middle support layer. There are 250 independent supporting points per inch, so the baby's fast growing bone can be well-protected and the baby can sleep well all time. Normal Pillow vs Air Mesh Pillow ?normal pillow >> the smoke unable to pass through the pillow ?air mesh pillow >> the smoke able to pass through the pillow. Suitable Age? 0 years old above. Mattress Size? 1070 x 690 x 20mm