CBN (cannabinol) often flies under the radar compared to THC or CBD. But for those seeking mild, non-intoxicating effects — especially for sleep — it’s a compound worth knowing. It’s also easy to make at home with a bit of time and the right tools.
Let’s break it down.
What Is CBN?
CBN is a cannabinoid that forms when THC breaks down. Fresh cannabis contains little to no CBN. But when buds age — or are exposed to light, heat, and air — THC oxidizes into CBN naturally.
Even in well-stored cannabis, studies show about 16% of THC degrades to CBN after a year [source].
What Does CBN Do?
CBN is mildly psychoactive but doesn’t cause the high most associate with THC. Users typically turn to CBN for:
- Improved sleep
- Reduced muscle spasms
- Anti-inflammatory support
- Chronic pain relief
- Anxiety and stress reduction
Its calming profile makes it a go-to option for nighttime use or for those who want relief without intensity.
How to Turn THC Into CBN
CBN comes from aged THC. You can let time do the work — or speed it up with heat and light.
Easy: Sunlight & Air
Leave your cannabis on a tray in a sunny spot for 2–3 weeks. The UV and oxygen will gradually convert THC to CBN.
Faster: Sun + Heat
Expose the herb to sunlight and heat it gently (100–110°C). This combination speeds up the conversion significantly.
Controlled: UV Curebox
Use a UV light curebox to break down THC in a few hours with minimal effort.
How to Make CBN Oil
Once your material is oxidized, you can infuse it just like THC or CBD.
Step-by-Step:
- Infuse with Oil
- Filter & Store
- Strain out the plant material
- Pour into dropper bottles for easy dosing
How to Make CBN Concentrate
Looking for a potent extract? Follow this method:
- Ethanol Wash
- Soak oxidized cannabis in 190-proof ethanol for 3+ hours
- Evaporate
- Filter out solids
- Add to the POT for evaporation until you’re left with a thick, dark resin
Final Notes
CBN is more than THC’s sleepy cousin — it’s a practical cannabinoid for those seeking rest, relief, and clarity. And it’s one of the few that’s simple to make yourself.







