The airnest Merino Protector is designed to fit seamlessly with the airnest mattress, and will also fit many other standard-sized cot mattresses. Quilted merino forms the perfect protector layer for your baby's cot, efficiently absorbing spills in the night, while remaining exceptionally odour-resistant and breathable - so both you and baby can rest easy. The airnest Merino Protector also provides a deluxe layer of comfort through both its plush feel, and its moisture-wicking ability; drawing moisture away from your baby so it can evaporate away. While this product is designed to fit on the airnest Mattress, it will also fit on most cot mattresses with dimensions of 1300x690mm. The merino protector is also 100% machine washable so in the event of a spill you can easily clean up without the need for special washing requirements.