Thanks chief for starting this topic. I’d like to ask a question of my own if I may.
I’ve spent years studying sleep. Not dreams, but the physical sleep process itself. It’s REM sleep the provides us with the rest we need. There are four phases that brings us to REM. Studies have proven that the lack of REM sleep will affect us physically and mentally. Another “wives tale” is that we can catch up on missed sleep. You can go several nights without sleep and have fully recharged batteries after only one good night sleep.
Why do you think we need to sleep and what are dreams? Theories are that is our brain is performing housekeeping (a scandisk and defrag if you will).