Under your bed!
Firstly vampires aren't real.. Secondly, if you're a troll I don't care much just doing it for others too. Thirdly, in the night (duh) in your bedroom under your bed. Each night they hiss and spit and touch your hair and face. The reason you don't feel it is because they bite sleeping venom into your neck. When you're completely asleep your brain shuts down but still works and your body goes numb.
You then die of stupidity for asking this question. You have made my day by asking a question a kindergarten would know. So in case you didn't read properly because you need another reading, spag test and to redo your sats - Vampire Are Not Real!!!! They are mythological legends that are found in teenage mutant ninja turtle films -so go to school and get a life!
You can find them in books, in movies, and on television and that's about it!
You'd find vampires holed up in caves or somewhere dark where they couldn't be harmed by the sun or be stumbled upon by a nosy human.