I read that weed makes you not dream, then when you go off weed you have crazy dreams. So heavy, heavy weed users that quit, how long did you have crazy dreams for?

I've been taking chunks of days off from smoking recently. My dreams' vividness and frequency of remembrance increase a lot around 12-24 hours after being sober. That will last for a couple of days. I find I can avoid dreamless sleep if I just smoke less. Sometimes I'll take one fat rip before bed, I'll have a pretty wild dream vividness if I hadn't smoked for a couple of days.