Bed bugs are amazing at hiding. They can fit their flat bodies in just about any crack or crevice. This makes it very easy for them to get around your house. By their very nature, bed bugs don't want to spread around, they actually like to stay together for warmth.
While not inviting friends to your home doesn't seem to be a very hospitable answer, it is a very natural response and will certainly help to keep your home bed-bug free, at least from that infestation.
Bed bugs (Cimex lectularius) are small, flat, parasitic insects that feed solely on the blood of people and animals while they sleep. Bed bugs are reddish-brown in color, wingless, range from 1mm to 7mm (roughly the size of Lincoln's head on a penny), and can live several months without a blood
How Are Bed Bugs Spread? Answer: Bed bugs can spread from one room or apartment to any other via door frames, home windows, or holes or cracks inside the walls, floors, and ceilings.
Although bed bugs have not been shown to transmit disease in the wild, they can devastate the reputation of your business or make your home appear unwelcoming. That's just part of the reason why you should take steps to prevent bed bug issues.
Bed bugs can spread from house to house, living in even the cleanest conditions; bed bugs are not a sign that a person's home is dirty or unkempt. Looking for Bed Bug Evidence