"Jamie - are you OK?"
"Did you stay up late reading?"
"No, and I didn't get out of bed to play with my dinosaurs either.."
So, there is my answer as to why he was still asleep at half nine this morning. Dinosaur play! I left him in bed and the kitchen clock shows the time he decided to grace us with his presence. Still at least he's not ill...just hope bedtime goes OK tonight now.