When you stay up until you get tired (or your natural bed time), you fall asleep right away. My wife reads until she falls alseep and drops her book or kindle. I usually lay down and go right to sleep. If I can’t sleep (rare), I get up and read or do something else until I get tired.
Sorry to hear about your husband. All that medication is probably messing with his sleep.
I teach guitar (and bass.) Private lessons. Five days a week. It’s my “day job.”