I've noticed that if I vape in the evening, I'll sleep solidly for 8+ hours, but when I wake I'll feel like I've only slept maybe 2 hours at best. The following day I'll be dead tired, but not sleepy. I've read similar experiences on other fora, and I'm betting some FC'ers have this problem as well. I'm wondering if anyone has found any clues why this unrefreshing sleep happens to some users, or what causes it and what helps it. For my part, I get it after vaping just a single stem (UD) or a single small bowl (back when I smoked). I haven't tried smaller quantities yet. Some suggestions I've read elsewhere are trying 5htp/tryptophan, l-tyrosine, sativa-dominants instead of indicas, no vaping/smoking at least an hour before sleep, reduce consumption, drink plenty of water to prevent dehydration, plan on getting a few extra hours of sleep, or simply don't use in the evenings. For me, it doesn't seem related to dehydration. And I usually stop vaping an hour or two before sleep. I usually get some decent flowers, but no idea what strains (non-MMJ state). Vaping during the day isn't an option for me. And the only solution I know and practice is not vaping daily. That's ok by me, but I'd love to find a way to not be exhausted the day after. So, I'm curious to hear others' experiences on this, thoughts, ideas, any in-depth technical info about cannabinoids and their role in modulating neurotransmitter release and how that affects sleep quality, anything related.