I've been an early to bed early to rise person for the last several years. Would routinely wake up around 4-5am before my alarm even went off.

But then I quit using cannabis entirely about 3 months ago.

Now I'm back to staying up late, sleeping in till 10-11 am on my days off, and feeling tired on work days.

Honestly this experiment has convinced me that I'm probably better off with a little moderate cannabis use in the evenings.