When one is so exhausted from a night of various exhausting activities one shall pass out and appear to be dead for hours on end.
by cpalm08 February 3, 2010
The act of finally getting your sleep when your dead, because you are too stubborn to get your sleep when it matters most.
Mary was dead tired, but she stayed up anyway to watch the re-run of Family Guy. She said, "I'll sleep when I die, therefore I'll watch this and wait for my death sleep! I mean sleeping is for pussies!"
by Killin'Kayla July 28, 2011