I think I'll try the sitting up at a table thing. Yes bed and sofa just too comfy! My dh is like you inneedofbrandy he would just keep on reading all night. I would love to sleep longer at night, but it isn't always feasible. I get around 8 hours most nights, and even if I wasn't feeling sleepy before as soon as I start reading I do.
I like to get up before everyone else and have a reading hour with a cup of strong coffee, it's a nice way to start the day and I find it easier to concentrate. Might not be as practical if you have very young DC. Reading in bed is impossible, I'm out like a light within a minute of my head hitting the pillow.