Book sales aside, the point about the brain being an associative device, and the advice to avoid lying in bed awake & instead going to another room until you're

Book sales aside, the point about the brain being an associative device, and the advice to avoid lying in bed awake & instead going to another room until you're sleepier, is really valuable imho. Entrainment is very real and happens rapidly, and this advice is not given often enough.