Insomnia Support Group
Insomnia is a symptom, rather than a disease, and is characterized by inadequate quantity or quality of sleep. People with insomnia complain of difficulty falling or staying asleep, which results in significant impairment of daytime functioning. Insomnia is categorized as transient (shorter than one week), short-term (one to three weeks) or chronic (longer than three...
Sounds like you're doing all the right things, but what I'm not seeing in your post is an effort to counter the sleep-related stress -- which is evident in your description.
Stress about the idea of sleep is a potent underlying cause, and it feeds on itself, creating a self-perpetuating vicious cycle that can be hard to break. CBT sleep training will give you tools and a structure to do that.
Meantime, be sure to keep a consistent sleep-wake schedule, avoid sleeping in and napping, and just try to let go the worry best you can. Be confident you can and will get the sleep you need, because your physiologic requirement for sleep is in fact stronger than your insomnia.
Keep us posted. I suspect someone who's as conscientious as you sound will be a very good candidate for CBT sleep training methods.
As for a low room temperature, that can be very hard and expensive to achieve. We live in Houston so keeping the bedroom are 65 would make the power meter really spin all night. What we have been using for several years now is a "ChiliPad". This product is not cheap, but you can easily control the temperature of your bed to any temperature between the mid-50's to over 100 degrees in one degree steps. I keep my side of our king size bed set at 65 year around. The actual room temperature setting in the summer is 76 degrees. Something to consider depending on money issues.
One OTC thing that helps many is taking magnesium. Are you taking a magnesium supplement? If not, then you are about 80% likely to be deficient in this vital mineral. I had one RN at a hospital say that she took 500mg at bedtime and that really helped her. I would not recommend that approach (didn't work for me for one reason), but a better solution is an extended release formula that you take both in the morning and again in the evening, and one more small dose at bedtime. There is a number of different types of magnesium. My wife and I both take the magnesium sold by Jigsaw Health (link below). They sell directly to the customer or are available at Amazon and other online sellers (about any vitamin of reseller). I would give Jigsaw's customer support line a call and ask them for specific recommendations for you; they are very helpful.
I hope that you can find some solutions!
https://mantasleep.com/
https://www.chilitechnology.com/#sthash.HnyW6hRi.M06cxXUw.dpbs
https://www.jigsawhealth.com/
I've tried the magnesium extended release, ChiliPad, I bought a darkening screen from the room, participate in yoga 3x per week, checking out more CBT resources, seeing different doctors. The hardest part seems to be the wait time for these doctors...I waited four months to see a general sleep doctor and the CBT for insomnia resource he referred me to (he's not big on sleep medications and neither am I) wouldn't even put me down for an appointment because they had no foreseeable vacancies for the next year. Things like that are discouraging. Tomorrow I'm calling some other therapists to see what they can offer and if they accept my insurance.
A friend of mine told me of a sleep expert at Rush in Chicago though he is pricey... at this point I'll try anything. It's all an investment to getting better.
Thank you again for all the suggestions!