A firm side provides the right support for your baby from birth to 12 months, as recommended by industry experts. As they grow from baby to toddler simply Twist the mattress for a more supple, comfy and durable support that will last for years to come. The Little Green Sheep cot 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. Suitable for cots. Core material coir. Cover: 100% cotton, . General information: Size L120, W60, D10cm. Manufacturers 5 year guarantee.