The Choo Choo Reflex mattress provides a firm yet comfortable surface for your child. It has a novel design that your kid would surely love.. . It is supported by a thick layer of high density Reflex Foam which gives firmer support as compared to other mattresses.. . The Choo Choo Reflex is crafted with sanitised materials which make it hypoallergenic and Anti-Dust Mite. This mattress is perfect for those who have allergies or asthma.. . The Removable Cover has a zip-off design which makes it easy to dry clean. Aside from that, it is Anti-Dust Mite.. . This mattress conforms to all British fire regulations for your peace of mind..