Wow, interesting old thread my wife found here this morning after I complained of tossing and turning the last few night. I'm almost a month in as an exclusive vaper with no analogs. Last night's sleep was really interrupted laced with vivid dreams for me. I actually smoked a cigarette in my dream too! I was vaping 18 mg BWB RY4 and Ejoker like a madman before bed cause I just got my first order of the two and love them both...lol. I know nic is a stimulant, but I used to be a heavy RED smoker for 25 years so I believe the prolonged insomnia can be attributed more to withdrawal. I went through serious withdrawal and insomnia from painkillers years ago after multiple surgeries and physical therapy as a result from a moto x accident. So maybe a lower nic vape at night can help but I would not go too low. The green tea vape with melatonin sounds interesting as well. Guess I will be experimenting over the next couple of weeks. It would be great to update this thread with more opinions from people who are still having problems with insomnia and why.....