Thanks, everyone! I've begun mixing a water-soluble powder called Nello Supercalm into a drink. On top of that, I'm taking Boiron Sleepcalm sleep aid and using an app plus a headband to listen to sleep meditation or stories. My watch now tracks my sleep, and the numbers might not be all that bad -- awake 26, rem 2 hours, core 5 hr 21, and deep was 38. That was last night.