I laughed when he said he was helped by seeing his "bad" night was one hour less than his targeted 7.
I can go 4 or 5 days a week not going to sleep before 4 AM and I am at work by 7 AM. I can also go 3 or 4 days waking up every hour on the hour and take 20 or 30 minutes to go back to sleep.
Most people don't know I am that tired thankfully.