Not to dimish the problem but to add my own experience, consider that a delayed sleep onset can be confused with bedtime procrastination. My circadian rythm tends to 25-26 hours. Every day I feel sleepy 2 hours later than the day before. That means every day I'm tempted to delay my bedtime by 2 hours because I don't feel sleepy at all. For the longest time I though the my difficulty falling asleep was habitual/emotio…
Is there a name for this circadian misalignment? I've never done any serious testing but over time have experienced the same realization, that my ideal day seems to be longer than 24 hours.
Our bodies respond strongly to food and light and caffeine. Food when you wake up, and darkness as you're going to sleep.
Remember that caffeine has a half-life of up to 9 hours, so if you're having trouble winding down at bedtime, that might be attributable to the cup of coffee or soda you had at lunchtime.