THC, CBN, CBD, and the advantage of harvesting late for insomnia

Apologies in advance if this gets a bit wordy, and if I'm stating something obvious that everyone knows, it's just because it's news to me!

I'm doing a bit of research as a result of reading a link in a post by Lucifer86 on what's in reclaim.

I was taken by this paragraph:

All four of these samples had increased levels of CBN, when compared to typical extracts and flowers. CBN, or cannabinol, is an oxidative breakdown product of THC, which is converted via heat/light/air/time. THCa will also convert into CBNa via similar mechanisms, but we cannot currently quantify for the acid form of CBN....Additionally, CBN is attributed to feelings of tiredness and/or drowsiness.

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I have read many people talk about later harvest with more amber causing "couchlock." They attribute that to the THC breaking down to CBD, which never made any sense to me as THC is a separate cannabinoid from CBD. Additionally, SweetSue taught me that CBD is the activating cannabinoid, not a couchlock one. Still, this line of reasoning persists across the internet and on 420mag as well.

Upon further research, I have discovered here that:

Unlike many other cannabinoids, CBN is not typically present on fresh cannabis flowers. In fact, even in dried and cured strains, the percentage of CBN often doesn’t reach more than one percent.
CBN is actually a breakdown product of the most famous cannabinoid, tetrahydrocannabinol (THC). THC is the primary psychoactive in the plant, and its what causes the plant’s classic “high”. As THC ages, it transforms into CBN. Typically, more CBN is found in buds that have gone stale. While that may sound unappealing, the cannabinoid has several surprising benefits. In fact, high-THC strains that contain higher levels of CBN are thought to provide a more sedative, couch-locking effect.

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This made me wonder, despite the above information that "CBN is not typically present on fresh cannabis flowers," if it is THC degrading to CBN in late harvests that is causing the couchlock effect. Scrolling through my search results led me to the great site GrowWeedEasy.com and the information on this page on THC, CBD, and CBN:

How to get high levels of CBN in your buds:
- Wait longer to harvest for higher levels of CBN

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That is the first time I had ever read that information in all my travels.

There is my Ah-ha moment! Most people on the internet are confusing CBD with CBN. And if I am looking for something that helps with insomnia, it's not just the indica cultivars I should be looking at, or even just the amount of THC in those indicas. I should be looking for much more amber before I harvest, not the 10-20% ratio I always read.

So, if I grow an indica with high THC, harvest when it's mostly amber, cure it poorly (), decarb it, and make capsules out of those buds, I should have a great anti-insomnia medicine.

Does anyone have any thoughts on this?