I have the same problem! very thin small lines/scratches when I wake up in the morning. The I get this allergy like itching all over my body. I really think in may be some kind of microscopic insect biting/scratching me at night. I have had my sister sleep over and she also woke up with identical scratches. The Dr. do not seem to have an answer for me and it's constant for a few months. I disinfected my entire home and from mattresses, dressers clothing. I was fine for 2 months and now it's back! can someone please help!