Many people don't seem to be aware of the potential dangers that lurk in and around their beds, yet a handful of unfortunate people have been hit by one boudoir menace: bed bugs. However, EarthSky has highlighted the warning signs surrounding these miniature menaces. Bed bugs are insect parasites that frequent soft furnishings, hiding in tiny crevices like mattress seams of behind headboards. Using heat sensors on their antennas, they sense exposed skin and feed off blood, leaving itchy red bumps, welts or a rash. To combat them, first check your bed to see if they're around. Flat and oval-shaped they're about the size of an apple seed. Check also for skins from the insects on your sheets, or any stains. When you've confirmed your suspicions, contact an expert exterminator to take care of the problem. So long as you remember the signs to recognise, you should be well-protected against these critters - just be wary of what you could face, as otherwise you could have a real problem on your hands - albeit a relatively rare one!