Caffeine destroys my sleep. It didn't use to, but since I dialed down my caffeine intake, I'm more sensitive to it. If I forget and have a coffee after dinner,

Caffeine destroys my sleep. It didn't use to, but since I dialed down my caffeine intake, I'm more sensitive to it. If I forget and have a coffee after dinner, I'm done for and won't fall asleep before 2AM-3AM. At least I know the pattern. A problem without solution is already solved: I just pick up a good book and wait it out, knowing I'll be sleepy the next day.