I've just been trying out this Book Seat bookholder (22.99 on UK Amazon, or $29.95 here on US Amazon). It's a clever design - a sort of very light beanbag thing with a perspex strip that holds the book open. It's a bit expensive but if you spend tons of time boringly lying in bed I think it's a good investment. I wanted something to hold a book so that it would stand on end so I could read it lying horizontally on my side and this is the only thing I've seen that looked as though it would do that. And it does, I'm happy to say! I've found that I have to prop something else behind it to give it stability but it does a good job of gripping even a thick book, even when you're right at the beginning or end (so the thicknesses of the two sides of the book are very different). Nice to be able to read without strain while lying down! For those of us who need to pace, I think this is a real tool in self-management; I find it's usually boredom that makes me avoid resting as I should so if I can read while I'm resting, I rest more. ETA: sorry, provided wrong link before! Fixed now!