How will you decide who gets the top bunk? Draw straws?
How about a "clocky" for an alarm clock for them? Colorful stacking containers for toys, games and other stuff? Walls painted happy colors like sunny yellow.
Moi and Moss, I think I missed the good news. Have fun getting ready for the grand-moi's.
Our sons always enjoyed story time. When they were about 12 they tired of it though, lol.