The libraryRecovery
Stimulus control therapy
Getting out of bed when you're not sleeping earned its place among the few things that genuinely clear insomnia; being lectured on sleep hygiene didn't.
Who it's forAny man who wakes at 3am and lies there doing the math on hours left.
Emergency: call 911.
I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.