Little Green Sheep Twist Natural Cot Mattress 70x140cm The Little Green Sheep Twist mattress is our best selling range, backed up by countless Awards over the past 8 years.  A firm side provides the optimal support for baby up to 12 months, as recommended by safe sleep experts. When baby becomes a playful toddler, you can simply twist the mattress for a more supple, comfy and durable support that will last for years to come. Free from chemicals - No chemicals or fire retardant sprays are used in our mattresses, giving you peace of mind that your baby is sleeping in a pure and natural environment. Naturally insulating & breathable - Our mattresses are breathable and insulating to help regulate your baby\'s body temperature. Naturally hypo-allergenic - The wool used in our mattresses naturally absorbs and disperses moisture away, creating a clean, dry environment that’s resistant to dust mites & bacteria growth. Features UK\'s Best Selling Natural Mattress Two types of support in one mattress: Support 1: Baby, firm as recommended by safe sleep experts Support 2: Toddler/Child, a softer medium-level support for extra comfort  Free from toxins and harmful chemicals Breathable and anti-dust mite Luxury quilted Herringbone cotton cover 5-year guarantee