Sometimes we're either too busy with stuff or want to watch movies.
OR we're too excited doing some kind of hobby, so we go to sleep at night.

I might end up sleeping at times just 5 hours.
in fact that's what's been happening lately.

I hear that REM doesn't happen till 4.5 hours, so that means i almost have no chance of reaching REM.

So should i just sacrifice hobbies and activities( Which is fine) and just go to sleep at 8pm or something like that? and get my 8 hours of sleep.