1. psyllid (also known as olive bug): This is a common indoor pest, similar in appearance to ladybug, small in size, usually brown or black, and sometimes spotted. They mainly feed on wood and fiber, and often look for food and breed in wet and dark environment. If this kind of bug is found on the bed, it may be because the wooden parts such as bedstead, bed board or mattress are rotten or wet, which attracts wood lice to find food.
2. Adult dust mite: This insect feeds on grain or fur products, and may appear in bed in larval stage.
No matter what kind of bugs, we should take timely measures to remove them and keep the family healthy. You can try to use pesticides, detergents, pest control facilities and other means to prevent and control, but you should also pay attention to keeping the room ventilated and dry to avoid insect reproduction. In order to determine the species and treatment methods of this insect more accurately, it is suggested to consult a professional entomologist or pest control expert.