* Firm cot bed mattress* Odour-resistant, firm polyester core* Breathable Eco Comfort Fibres™* Hypoallergenic A firm kids mattress supported by an odour-resistant, firm polyester core, this mattress is washable, highly supportive and won't overheat your child. Breathable Eco Comfort Fibres™ soothe and maintain a comfortable temperature so your child will wake more refreshed, while the smooth sleep surface adds an extra level of comfort. Silentnight's Eco Comfort Fibres™ provide enhanced breathability, letting air flow freely to keep your little one cool throughout the night. Create the cleanest, safest and freshest sleeping environment for your child with a hypoallergenic, foam and FR chemical treatment-free bed.