I have looked for several solutions for sleep logging and found nothing really amazing if you want to be OCD about details (food, mood, etc.). As for something very simple, that works only with free-running sleep, try the no-frills Sleep Chart.
By the way, I recommend experimenting with free-running sleep, i.e., go to sleep when sleepy and wake up when rested — no alarm clocks, no schedules.
I have looked for several solutions for sleep logging and found nothing really amazing if you want to be OCD about details (food, mood, etc.). As for something very simple, that works only with free-running sleep, try the no-frills Sleep Chart.
By the way, I recommend experimenting with free-running sleep, i.e., go to sleep when sleepy and wake up when rested — no alarm clocks, no schedules.