My personality type starts with A as well but has more letters after that as in ADHD and how it hasn't got me killed years ago is due to dumb luck or a guardian angel. I finally started taking meds for that recently and just had 20mg of dextroamphetamine with my morning coffee.
When THC breaks down it becomes CBN. This is why a lot of growers allow their flowering plants to stay in flower long enough to get lots of amber trichomes. That can tie up your flowering space for extra weeks waiting for that but you can produce more CBN by decarboxilating, (decarbing), your pot longer than needed when prepping it for edible use. Airtight decarb containers can be bought in different sizes to decarb in the oven preserving terpenes etc if you want to be able to smoke your pot with higher levels of CBN tho I'm not sure that burning the pot after decarb won't break down the CBN present.
If you check out the link in my sig you'll see how I made cocobudder and decarb the fresh pot right in the oil. Allowing that step to go on longer will convert more THC to CBN. Other oils can be used instead of coconut oil if it's not to your liking. These days I prefer to extract the oil from the pot with solvents and then decarb that for use in edibles.
As you seem to be a man of means you might want to just buy some CBN product online. Pure CBN extracts can be had or blends of THC and CBN are all over the place with a quick search. Then you could try CBN directly to see if it has the desired effect before investing time and effort trying to make your own. If it does, and like I think you want to make your own, you would know what effect to look for from your DIY product.
I've been making edibles for quite a few years now and go by how it feels to me to titrate dosages and advise people who I've given it to about dosing themselves. I have quantities of 2 types of pot, (reg thc stuff and thc/cbd strains), plus a few pounds of industrial hemp flower I gleaned from the hemp field down the road last fall after they cut it down. The plan is to turn it all into 3 batches of oil then send a sample of each to a certified cannabis testing lab in Vancouver to have it analyzed so I can make edibles like gummies or chocolates of known dosage in the CBD or THC silicon molds I bought just for that purpose. They only charge $60 for the potency testing and told me I can get a bit of a discount as a senior.
When they legalized pot here in Canada they changed some of the other laws too so now the maximum penalty for making oils using organic solvents is 14 years at Club Fed. The only way they would be able to get me for that is if I screwed up and blew up my operation bringing in authorities. I worked as a chemist in a hazardous waste disposal facility for a couple of years not long after I got my chem diploma so have a lot of training in handling dangerous goods so that's unlikely.
I used to have horrible insomnia for decades probably due to chronic depression and PTSD symptoms brought on by a near fatal hammer attack in my early 20s. About 8 years ago I had a minor stroke and sleep a lot better now. Not a remedy I recommend tho. I did have problems sleeping after that but it was due to an enlarged prostate causing me to get up 5 or more times a night to go pee hardly anything and still feel the urge to go afterwards that kept me awake. I was using zinc to help with that but it wasn't working as good as it used to so now use a few different supplements to not only allow me to sleep through the night most nights but go right back to sleep if I have to get up. A hi-rez MRI I had in Dec 2022 had my prostate at 64cc then an ultrasound I had just this last Jan has it now at 44.9cc. If I just took the urologists advice I would have been on at least 2 different harsh pharma meds and had an unneeded biopsy with all the nasty side effects that go along with those.
Have you ever tried melatonin for your sleep issues? It can really help getting to sleep but doesn't sedate you like sleeping pills do. It's also an anti-aging hormone. I use it fairly often just to get to sleep easier and faster when I want to get to bed before I really feel like going to bed or have to get up early. I tend to stay up way too late and am trying to get back on the day shift. These ADHD meds seem to keep me awake so it helps with that too. I like the 5mg sublingual tablets and stick one under my tongue when I go to bed and read for a while. 5 pages later and I'm dropping the book. No dopey hangover when you get up and it doesn't mess with your REM sleep so you feel rested when you get up. A lot of people say you don't dream when using pot but I've never found that to be true. I don't smoke lots but have a few hits in the pipe every evening and have lots of dreams. Mostly positive dreams or very puzzling but very rarely scary ones and that only happens when I'm physically or emotionally stressed out.