I go to bed at night and feel something jump on me and start to bite me. It itches but doesn't hurt. Just very annoying. Something along the lines of fleas, but cant see them at all. Like to small or something. Cause I sat there one night and waited for them to start to bite and then looked for them and couldn't find anything. They don't seem to come out unless it is warm cause if its remotely cold they don't seem to bother me. Someone please help me.