Does this mattress fit in the Mothers Choice Coco Bassinet?

Hi Sarah, Thank you for your enquiry.The Baby First Foam Bassinet Mattress in large has dimensions of  400mm(W) x 750mm(H) x 50mm(D) which would make this particular mattress too large for this particular Basinet.The dimensions of the Mothers Choice Coco Bassinet when assembled is 880mm(W) x 900mm(H) x 580mm(D). and Includes a Mattress with dimensions 580 mm (W) x 900 mm (H) x 855mm (D). If you follow the link https://www.babyonthemove.co.nz/mattresses/bassinet-mattress this will take you to our online selection of bassinet mattresses available, each specifying product dimensions, If you are looking to purchase an alternative mattress to accompany this bassinet. Alterbatively, If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our on-line 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.