Recently cut out cannabis, cbd, coffee and all alcohol and its shocking how different your sleep becomes. There needs to be more research done on stimulant free brains and my theory of how better our brains are at "taking the trash out" at night when not pumped full of quick/easy dopamine.

> Recently cut out cannabis

I've found if I cease cannabis use by 5pm each day that it doesn't impact my sleep (or ability to dream and remember them).

I also need to be done exercising (strength or cardio) by late morning to not have an impact on sleep.

Finally, supplementing magnesium with dinner has probably made the biggest impact on increasing restful sleep, in agreement with this recent discussion:

https://news.ycombinator.com/item?id=48919363