That sounds like the opposite of sleeping too deeply to me. That sounds like you aren't getting enough.

Do yourself a favor. Take off the nightcap, put on the striped pajamas and the old-timey candle holder, and book out a full 10 hours for a few weeks. Make it non-negotiable. Full darkness, clean air, quiet, the works. Maybe even get tested for sleep apnea if you're overweight.

If you go through that for 3 weeks religiously and return to the nightcap I'll eat my words and consider you a medical anomaly. But I think you'll come out of it convinced it's worth the sacrifice.

Been there, I just sleep a full 10 hours and can't fall asleep the next night. I sleep 7 hours, that's the right amount for me. If I don't feel like drinking, I'll eat something heavy to lighten my sleep quality. I obsessively track my sleep, and this is all I've found so far. The other option is polyphasic, but that's limited in terms of practicality.