I have an old 'Itty bitty book light' (brand name). They apparently are no longer made. The best replacement I've found thus far are some LED clip on book lights. Not as stable as the itty bitty one but it works. I looked at them and passed but DH picked on up for me a couple of months ago as we were traveling and he thought it would be easier packing with that. Used it while on vacation and worked fine. I read in bed every night. I wear glasses to read in bed and the kindle/tablet just has no appeal for me as I can't get the type large enough to not wear glasses. The actual books are just as easy for me.
BTW - picked this up in either Walmart or Target - forget where I saw it. About $20 I think??