We disagree. I've 35+ years professional programming experience and have done plenty of insane 90+ hour weeks. I've done coffee by the bucketful, cold showers i

We disagree. I've 35+ years professional programming experience and have done plenty of insane 90+ hour weeks. I've done coffee by the bucketful, cold showers in the early hours, loud music to keep awake, slapping myself to get the adrenalin going. On one project I began a shift at 7am on Friday, programmed until the early hours of Monday, drove 300 miles, installed and trained users, and collapsed into bed late Monday evening. I'm sure you've done more, and I'm not trying to start a peeing competition, just point out that I do have experience of this. I still maintain that (possibly other than drugs), sleep is his best friend. He's largely unproductive at the moment, so a few hours "lost" to sleep is no real loss. What it will probably do is make his remaining wakeful hours more productive. "If you have no answer, then don't post anything, and let others answer." I don't see any answers in your post.