Thanks you guys!
He took a nap yesterday evening & then stayed up all night to prepare for his first night at work tonight. We'll see how it goes.
There is a new medication that is prescribed for narcolepsy & shift work sleep disorders. It's not a stimulant, it's a bit different. Doesn't stay in your system long either, only about 6 hours or so. At least we know it's there if he needs it. That, or meth.
J/K