With a Little Green Sheep crib mattress, you can rest easy knowing that your baby is sleeping safely in a pure and healthy environment, free from toxins and harmful chemicals. Free from chemical fire retardant sprays or adhesives (found in most crib mattresses) and we meet all British Safety standards naturally. The little green sheep snuzpod mattresses are made using only four natural ingredients, of the best quality: breathable cotton, supportive coconut, comfy natural latex & wool. Naturally hypo-allergenic fleece wool disperses moisture to create a clean, dry and anti-dust mite environment. The mattress cover is not waterproof so to prevent any damage to your mattress it is advised that you must always use a little green sheep mattress protector. Luxury quilted cotton cover. Core material coir. Cover: 100% cotton, . General information: Size L80.5, W36, D3cm.