Several people have said that bedtime honey made them wake up too early. For example:
No effect for me, worse for my wife (hours of wakefulness in the middle of the night after a few hours of sleep)
The commenter said this meant it wasn’t working.
My view is different. To me, this experience suggests that there is something safe, cheap and practical (honey) that has a powerful and non-intuitive effect on sleep. Finding something like that is extremely hard. (Drug companies have spent billions of dollars trying to do this, with far worse results.) It isn’t easy or obvious or trivial to learn how to use that powerful force to produce improvement rather than harm (“hours of wakefulness in the middle of the night”), but I am sure it is possible.
My first important use of self-experimentation was in graduate school. I discovered that one of the medicines my dermatologist had prescribed for my acne wasn’t working. The notion that a prescribed medicine didn’t work is useful, but not shocking. This success was enough to launch me into self-experimentation to improve my sleep — specifically, to reduce early awakening. This turned out to be very hard.
After ten years of trial and error (all error), I discovered something that made my early awakening reliably worse. I was thrilled. After ten years, something finally made a difference, albeit in the wrong direction. It was a turning point. I did many experiments and finally figured out that any breakfast made my sleep worse. This was far more progress than finding out that a prescribed medicine didn’t work. It was progress because (a) nutrition experts usually said that breakfast was “the most important meal of the day”. My discovery flatly contradicted that. I became a lot more skeptical of experts, a view that has served me well. (b) Eliminating breakfast greatly reduced early awakening, and (c) the discovery showed that self-experimentation could do better than expert advice in surprising ways. My interesting self-experimentation began with the discovery of something that made my sleep worse.
I too have found that although I am sleeping much better, bedtime honey and other evening sugars have also made me wake up too early more often. I too need to learn how to better use this new knowledge.