Do you have the ability to make custom sizes? We do not provide custom sizes at this time. Related articles I like a firm mattress. Will Purple be a good fit for me? Will a protective allergy cover impact the Purple Mattress? Do you offer custom sized mattress options? What is the weight limit for the Purple® Seat Cushion? Can I put the Purple® Mattress back in the bag it was delivered in? How can I do that?