Hobbes is really interesting - when you're not pressurized to understand every single word, and you can read at leisure.
When I took Philo in Year 1, we discussed dreams. How do you know you're awake, how do u differentiate when you're dreaming or when you're truly awake? Read Descartes' Meditations for some very confusing discussion about this. HObbes mentioned dreams too.
For my part, when I consider that in dreams I do not often nor constantly think of the same persons, places, objects, and actions that I do waking, nor remember so long a train of coherent thoughts dreaming as at other times; and because waking I often observe the absurdity of dreams, but never dream of the absurdities of my waking thoughts, I am well satisfied that, being awake, I know I dream not; though when I dream, I think myself awake.
Hah. There you go. Who careS? I know I'm awake now.
Speaking of dreams, I had a weird dream that I was 1 of a pair of twins, and there was like some adventure, fun-filled, with dangerous dark waters, and identity crises. And you know what, I wasn't even a girl o_O Dot.