i seem to remember reading something or someone telling me about a loud bang i mean loud like a gunshot while sleeping...Well last night,on dream exit i heard such a loud boom that it woke the heck out of me well not really woke me just got me thinking,was that real?

I realized it came from within wich is good as i was about to wake the wife but thought why risk my life,she obviously didnt hear it

Please any comments appreciated