Does my Purple® Mattress have to be split in order for the Ascent Adjustable Base to work correctly? The Ascent Adjustable Base comes as a Split-King and works well with a King mattress OR two Twin XL mattresses. Related articles Do you have a bunkie board option? Does Purple set up the Ascent Adjustable Base when it is delivered? Can I use the Purple mattress with a power base I already own? How do I purchase a replacement remote, if needed?