Exhaustion

I am having troubles.
I feel sick – exhausted.
I have been reading more.
Besides logic, I am reading other things.
Lately mostly Atheist Mind, Humanist Heart.
I was enjoying it – I like it very much.
But I got only 3 hours (approx) during the night.
I did not think I could sleep much more, but lay down, with book on text-to-speech, instead of my usual music (e.g. Liquid Mind).
Anyway I was in and out of consciousness.
I was in bed about another 3.5 hours – got through the book – but don’t remember it well – will have to go through again.
Feel worse than if I had not gone back to bed.
I think it has nothing to do with content of book.
I just need gentle music in order to sleep well.
And I cannot stress self with too much reading.