Studies have found that CBD can increase sleep. CBD is generally not a sedative (except possibly in very high doses, approximately). Studies have shown that CBD can increase sleep quality and, at higher doses, can increase sleep duration. However, if your goal is to fall asleep, CBD is likely to only help you if your insomnia is caused by neuropathic pain or anxiety.
You want the lowest dose that works. So start with 20 mg (1 week), if that's not enough, go to 30 for a week, etc. In the study, those who received CBD reported sleeping longer, with fewer periods of wakefulness or restlessness. Current thinking is that lower doses of CBD correlate with wakefulness and higher doses to promote sleep.
I recently gave up zopiclone sleeping pills at a rate of 5 mg per night and was wondering what a good dose of CBD would be for insomnia. My boyfriend works at night and has a hard time sleeping, since using cbd he has found relief and is finally able to sleep.