From a YouTube comment: 

Is the "deep sleep" state any different from the after-death state? or from the pre-birth state? The bio-chemical chain reaction that is the body-mind/organism, it comes and goes of course.

Thanks for your query. 

I have written a section on the Self-Realized view of death on page 204-208 of Living Nonduality, and in the subsequent companion volume Abiding in Nondual Awareness on page 49-52 and 194-195. 

If you'll peruse those, we can then consider any specific questions.

-RW