Which mattress on your website would fit this cot?

Hi Brooke, Thank you for your enquiry. The recommended mattress size for this cot needs to fit the following measurements: Length 1000mm x Width 630mm x Depth 100mm. Unfortunately we currently have no cot mattresses available to purchase online within these dimensions. However, as an alternative option, you can find out pricing and availability in store where one of our team experts can assist in arranging a custom made mattress to suit this product. 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 will be happy to assist you in your product search and help answer any further questions you may have. We hope this has helped with your query.