I had insomnia for 3 years, nearly OD'd on sleeping pills...I didn't smoke weed regularly till I was 23...Can't say I have had a problem falling asleep since I started smoking half hour to hour before I was going to get into bed to try and pass out. Obviously if you have elevated levels of stress or anxiety its going to make it hard to sleep regardless of what you do.
I started doing yoga, and working out regularly, eating healthy is extremely important too. I'll never go near a sleeping pill again. Yay 420