This memory foam mattress is 15cm deep, comprising of a luxurious 2.5cm layer of 60kg density memory foam, and a foam encapsulated pocket sprung base, offering optimum support for the whole body and the comfort that your child needs to get a restful night's sleep. It's hypoallergenic and antibacterial properties mean this mattress is perfect for allergy and asthma sufferers. The mattress has a zipped, removable and washable Outlast® cover. The Outlast® technology provides a unique microclimate for your child, so that their body temperature is regulated throughout the night, meaning your little one will get the restful night's sleep they need. The mattress meets all UK regulations and UK fire safety standards, for a safer sleep. A supportive mattress can offer your child a healthier, deeper sleep, essential for their development. Unfortunately due to a change in Amazon's shipping settings we can no longer specify a separate shipping charge for OFF UK MAINLAND (e.g. Eire, Channel Islands, Scottish Islands, Northern Ireland, Isle of Man) the shipping fee for Off UK Mainland is £45.00 per shipment. If you place an order to an address off UK Mainland your order will not be dispatched until the additional shipping payment is received, please contact us upon placing your order to make the additional payment. Thank you for your cooperation.