How light/heavy a sleeper are you?
Extremely light: almost any noise or disturbance wakes you, even very soft ones.
Light: soft noises/disturbances wake you, like a person walking past your room in shoes or your bedmate shifting position next to you.
Fairly sound: sharp noises or mild disturbances wake you, like someone clapping softly or gently shaking your shoulder.
Sound: sharp noises or disturbances wake you, like a loud clap or a rigorous shoulder shake.
Heavy: only extended sharp and loud noises or disturbances wake you.
Extremely heavy: you don’t wake until you wake; it would take a white-hot needle in the eye to wake you, and possibly not even then.
I’m somewhere between two of the described levels.
It varies depending on _________.