I don't need to cover the skylight on my Landmark Cape Cod because the bathroom is separate, but on my previous Jayco Designer I got Lowes to custom cut a regular window shade to about one inch wider than the skylight on each side. I removed all but about 18 inches of the shade and mounted it to the ceiling. I cut the plastic stiffener that goes through the pull end of the shade to two inches longer than the shade width (left an inch sticking out each side) and put two inexpensive brass cup hooks in the ceiling on the opposite side of the skylight. At night, I pulled the shade across the skylight and used the two hooks to hold the stiffener rod. By letting the spring tension of the rewind pull back on the shade, it stayed flat against the ceiling and did a great job of blocking out light. The shower faced into the bedroom, but hardly any light came through. I was concerned how it might hold up being repeatedly subjected to moisture as we always shower in the camper, but in five years it never showed any problems. The shade was vinyl plastic and unaffected by moisture and enough of it remained rolled over the cardboard tube rewind tube to protect it.