abnormal sleeping habits?

roman is starting to work away from his afternoon nap... not by our choice, but it's seeming to happen.  so we've been giving him the choice to either sleep or rest quietly in his bed -- and if he chooses to rest, then he picks out a book or two to have with him in bed.  when he's quiet in his room, i assume he's sleeping.  he seemed to be squirreling around yesterday at the beginning of naptime, so i went in and asked him to rest *quietly*... and then that's what he did!  i didn't hear from him, so i went in to check on him around 4:15... and found him fast asleep...

not sure if you can see it, but his bed is off to the right... he doesn't usually sleep on his floor with his blanket covering his face.  funny boy we have!!