The Deepest Sleep

You know how some people need noise generators to help them sleep? Rain, or seashore sounds, or a rain storm?
A fan sometimes does the trick.
I need the sound of the stock market trading floor. That cacophony of phone calls and shouting traders and ringing bells lulls me into a pleasant slumber, and I wake as rested and fresh as a new person.
The more brutal the trading day, the better the sleep.
But I want more.
A friend says they can score me an old recording of Black Tuesday.
Will it take me so deep, I won’t return?