eli5: Why does waking up to an alarm make you much more tired in the morning rather than waking up naturally?

Question

I am tired 100% of the time I wake up for work even though I get 8 hours but on the weekends I don’t feel as tired at all.

In: Other

Answer 1

When you naturally wake up your body is in the shallowest part of your REM cycle. If you get woken up while you’re in your deepest part of the cycle you are going to feel shitty