Bedtime reading

My son's first lot of exams started today. He came home completely worn out with lots of revision to do. he has three exams tomorrow: history, physics and RS. I sat on the sofa with him to test his history but within 20 minutes he was fast asleep on my lap. I didn't have the heart to wake him up. I woke him up 45 minutes later and he was suitably refreshed to continue with his revision. Here he is in bed reading (I guess) a funny novel.