Signs You've Got Bed Bugs
Small reddish-brown insects, roughly the size of an apple seed, are the clearest sign, usually found along mattress seams, headboards, and skirting near the bed. Bites in a line or cluster, often noticed on waking, are common but not universal, some people don't react to them at all, which is part of why an infestation can go unnoticed for a while. Small dark spots on bedding, which are bed bug droppings, and a faint musty smell in a heavily infested room round out the usual signs.