There's no harm in speculation.  Are you familiar with what happens to your awareness under general anesthesia?

That article would explain why some people are reporting nde, obe and other spiritual phenomenon under anesthetics.  Brain activity is not ceased even after dying . So theoretically awareness (in a dream state) could continue for short periods after death.  I think the knowledge contained in The Tibetan Book of the Dead exemplifies this beautifully. 

I still think it un wise to assume awareness continues after death though and believe that you should take full advantage of the life you were blessed with now.  Just my 2 cents.