Similar for Starry Night. One 2 " thick memory foam and 1 "egg crate" style mattress pad, bought a king size comforter on clearance to use on one side and a sheet for the flip side. The color coordinates well with the upholstery. It is easy enough to fold over one half to get to the storage areas below.
Do not skimp on the size - memory foam runs smaller than the bed size by a couple inches, so you really need to purchase KING size for this project.
One other change I made was to cut out a shape that matches the first square removable cushion and covered that separately. During the day I wanted to be able to stand down there to dress or sit on the bed, so I wanted to be able to remove that one piece. This was a more technically challenging project because of the sewing involved for the cut out, but worth it. I sewed 2 thirty inch long "separating zippers" along one side so I could remove the cover for laundry.
Finally, for storage, I purchased 6 clear plastic bins with snap on lids from Target - these stack perfectly, 2 side by side, 3 high, and hold clothes and shoes, his and hers. Will no doubt use fabric velcroed to the bottom of the second square insert cushion (the one the bins are stored under) to hide the bins. Pictures eventually.
I also am working on some sort of cushioning to attach to the teak head bangers down in the bed area (ie the backs of the helm stations). Having just sold our MacGregor 26x sailboat today, I am done with head banging in my boats!
Have fun!
Sparky