... any time I'm not staring at a screen. Fortunately for driving purposes the 'windscreen' counts.

Everywhere else I fall asleep easily. Last time at the dentist (they like to impress clients with their "extra care" and so these days are into taking blood pressure) I impressed them with 72/56. The first couple appointments they thought I was kidding that at least there I can get some sleep. How could dental work compare to the pain at work...?