This is me! I read in bed, and it makes me so sleepy, I usually only get through a few pages at a time. I'm currently in the middle of Stephen King's "Fairy Tale." I really liked the first part of it, but I'm struggling to stay interested through the middle, so it's taking me forever to finish it.
I was exactly the same with Fairy Tale, loved it until about halfway through and then really struggled to keep going. I did stick with it and it got better towards the end. Took me months to read it though!
I still only read a few pages when I go to bed and I'm tired.
I'm now reading The Five People You Meet In Heaven by Mitch Albom as I think I saw that Mare had enjoyed it, and it came up on Kindle for 99p so not much to lose if I don't like it. I'm about 30% into it and enjoying it so far.