Sometimes just having that time of "nothing" is a good thing for children. It allows them to use their imagination, lets them decompress by allowing them to sing or chat to themselves, and also is a good time to explore books on their own. If he's staying in his bed, and isn't complaining, I wouldn't change a thing. On days that he still needs a nap, he'll eventually snooze, and during the time he doesn't need a nap, it provides both you and him that time to relax. Books on CD are a wonderful thing to add to a rest time, and I often used them in my preschool class during rest time for those little people not able to sleep. He doesn't even need to have the book in-hand to enjoy them...often times, chapter books read on CD are a fabulous way to inspire them to want to rest, in order to hear what's coming next in the story. Just hearing the language of the story is not only soothing, but also builds language/literacy development. For short stories, you can record them all on one CD so that you're not having to go into his room to change them when the story is over. There are also relaxation CD's for children, as well as wonderful children's music and poetry/nursery rhymes that are a nice way to keep things interesting, yet soothing. Hope that helps! :o)