I have only tried to do a different duvet cover on the mattress. However, this was not a very good result. That's why I decided to but then the matching Babybay to order reference. The price stopped me long about it. In my opinion it is money making, the reference for this price to sell. But the reference is of good quality, can be super drag on the mattress. Even after washing and tumble dry there was no problem. Everything fits wonderfully. In order to have a protective foil in the bed, I bought an extra in size 40x50. The fits perfectly on the mattress and is not so large that the child could lie face it.
