Okay, I wish I could do that too but my head is going crazy I imagine things that aren't there. I wish I could fall asleep that quickly too
I just embrace them. Usually I like to read a book that's in my interest or goal in life example: business. And I just journal everything even if it's not needed or just very weird. A lot of invention comes from dreams. Imagine loads of stuff but I just black out and focus something relevant.