EDIT: Let’s cool it with the downvotes, dudes. We’re not out to cut funding to your black hole detection chamber or revoke the degrees of chiropractors just because a couple of us don’t believe in it, okay? Chill out, participate with the prompt and continue with having a nice day. I’m sure almost everybody has something to add.
I sleep in a completely blacked out room yet I know when it’s near the full moon because my sleep gets very broken and restless.
The only difference between a full moon and a new moon is how much light it reflects towards the earth. The moon is still there. If there were some sort of magnetic or gravitational effect on you while you slept, the effect would be the same whether the sun was shining on the side you can see or not.