What does it take to wake you once you're in a deep sleep?

I mean are you a light sleeper who’s relatively easily woken, like a mouse trods on a pebble outside & you’re all “whassup, who, where, what, why, when” Or could you sleep through almost anything, a herd of wildebeest frolicking merrily in your garden, or a full scale rendition of In the Mood by the Glenn Miller band.What tales of snoozing can you, will you share?