Why We Sleep: Unlocking the Power of Sleep and Dreams

Sleep is my religion (I guess it's Dr. Walker's, too). I was an excellent sleeper before I read this book. Now, I lay awake thinking about needing to sleep, and I wake up in the night regularly when before I never once did. Have I gone against the popular adage of “don't fix what ain't broken”? Will this phase pass? Do I need to purchase an air conditioning unit?? 
Very good book, on the whole. I spend lots of time in academic circles myself, so the clear use of language and the scientific detail was very much appreciated - though I can see why it might be dense for a newcomer to scientific language. I found every morsel of information delicious.