The silentnight healthy growth kids divan set features a mattress with a miracoil174 spring system to ensure your child is properly supported and ecocomfort fibre174 fillings to keep them cool and comfortable throughout the nightthe mattress is also free from chemical treatment containing only clean and odourless polyester fillings making them hypoallergenic and dust mite resistant they provide extra layers of comfortable filling for growing bodies and theres a choice of lilac or blue