They are bedbugs. They usually grow on wooden beds. Change your bed, and keep your quilt in the sun. This kind of thing bites people too hard. The place I rented before almost bit me to death. This creature is very powerful and current pesticides cannot kill it. It is afraid of being exposed to the sun and will run away when exposed to it. It is also afraid of being burned when exposed to sunlight, but it cannot be eradicated unless it is caught and killed. The best way is: 1. If it is a rented place, change the bed. 2. Find a good day and take out the quilt to expose it to the sun, and pat it after a while. 3. Clean up the house and top it with insecticide.