CBN is one of the newer cannabinoid compounds from cannabis, though lesser known compared to its other cousins, CBD, CBG, and of course, THC. However, it’s been getting some attention recently because of its ability to induce sleep and relax. This is possible because it’s created when Delta 9 THC is degraded, which can be done in the lab. CBN also forms naturally when THC is exposed to light and heat, that’s because it naturally oxidizes in these situations. That’s why if you have left your weed out for a long time, or exposed to air, it might not get you as high as you wanted though it can make you sleepy – because the THC has already turned into CBN.