While not as effective as oxycodone for my nighttime gut pain, I've found that medical cannabis is somewhat helpful in letting me get to sleep. And I'm willing to take it more often. What has worked best for me so far is a 3CBD:1THC mint that can be dissolved under the tongue, started about a half hour before bedtime. I've tried a vape pen which was quicker-acting but find it irritates my throat. I also tried an oil-based tincture that tasted terrible and took forever to kick in. (This is all legal, even recreationally, in my state.)