This Outlast® Deluxe Pure Cot Bed Mattress is naturally hypoallergenic & antimicrobial, providing your baby with a naturally healthy & safe sleep environment. The latex upper layer will provide a supreme level of comfort & support, so your baby can sleep peaceful through the night. It is tested to BS1877 pt. 10, meeting all UK regulations & UK fire safety standards, for a safer sleep. Made from the sap of rubber trees, latex is an eco friendly mattress option, known for its distinct durability & resilience, making it the perfect natural sleep surface. Outlast® technology fabric was originally developed for NASA & features specially created fibres, designed to regulate core body temperature. The Outlast® fabric works by drawing out heat as the body begin to get too hot, & then stores the heat energy ready to be released for when your baby cools down. This means your baby is more likely to get a full & undisturbed night's sleep. All our cot bed mattresses are manufactured in the UK with quality raw materials, plus you can purchase your baby's cot bed mattress with the confidence of a 2 year manufacturer's warranty.