Hi Beth, Thank you for your enquiry. When purchasing a cot mattress, it is recommended to use a bedding protector to enable ease of cleaning for baby spills, etc. We have a range to choose from online, if you follow the link https://www.babyonthemove.co.nz/linen-and-bedding/bedprotectors this will take you to our selection. The Cotton Quilted mattress protectors should be suitable for this purpose. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move store where one of our team experts can help find a suitable solution for a product you may be searching for and assist you with any further questions regarding our range of products available. We hope this has helped with your query.