Rosemary Laurey's Vampire series. There are five books. Very adult.
Susan Sizemore is another great author to try.
Nora Roberts writes some great paranormal books aimed at adults.
Hope this helps!
I'm not sure what you meant by wanting to read without thinking. My suggestions for a good read on holiday:
Little Women (it's a classic)
Summer Sisters by Judy Blume
Nicholas Sparks -any of his books are good
Sarah Dessens' books