Thank you @RayRBD for your thoughtful response. I was originally going to wait until I had 2 months of data, but will post my very preliminary results now.
I started taking ashwaghanda 2 weeks ago. [Douglas Laboratories, Ayur-Ashwagandha, 300 mg, 1 capsule/night, 1-2 hrs before bedtime, $20.80 for 60 capsules.]. It can take up to 2 months to see the full effect. So far...
• AHI ~ 3.0
• 8/14 nights slept >7 hrs vs avg 5-6 hrs
• 12/14 nights woke up 2x/night vs 3-7x/night
• 14/14 nights longest period of sleep >2 hrs (average: 2.66 hrs) vs avg 1-2 hrs
• Time to fall asleep ~ 7 min vs avg 8 min (about the same as before)
• 0/14 nights RBD behaviors, movement or vocalizations, vs ~2-3 significant events/week (screaming, hurling self out of bed)
• Waking up relatively refreshed vs feeling run over by a truck
• No side effects
CAVEAT 1
There’s no way to separate the effects of ashwaghanda from the cumulative effect of being on correct CPAP therapy for one month. I may be predisposed to wanting ashwaghanda to work. But my skeptical husband noticed a difference immediately, and my sleep doctor did not believe the results were solely due to CPAP therapy.
It's possible that I had/have pseudo RBD due to long term sleep deprivation. It's also possible getting more REM sleep as a result of starting CPAP was responsible for the recent greater violence and greater frequency of RBD type behaviors I experienced before I started taking ashwaghanda. Time will tell.
CAVEAT 2
My highly trusted integrative physician recommended ashwaghanda for my sleep disturbances. This is a supplement which you don't need a prescription for. Supplements are not regulated, so quality can vary wildly. Douglas Laboratories is a very high quality firm, and it has the highest percentage of the active ingredient (7% withanolides vs 1.0-1.5% in other brands) of the ashwaghanda supplements I've seen. As with any therapy suggestion, please do your own research if you are considering taking this supplement. I'm not a medical professional, and I have only presented the experience of 1 patient (me).