Bedbugs are classically found hiding in fabrics in bedrooms and mattress covers are no exception. Infested mattresses, comforters, cushioned furniture and the mattress covers will show the dark spots, which are the dried excrement of the bedbugs. Bloodstains may also be a visible one from bedbugs that are accidentally killed in the night by their sleeping hosts. Maturing bedbug nymphs molt or shed their skin during their growth; these skins can sometimes be found in or around infested materials. In addition, bedbugs themselves are often visible if the source is examined very closely enough. Check the seams of your mattress or mattress cover for the insects.
Sprays prove mainly ineffective in treating the bedbug infestations. Vacuuming and laundering at high temperatures that gives short-term relief, but if there are bedbugs on a mattress cover, it is likely that bedbugs and their eggs are also be present within the mattress, sheets and elsewhere within a home. Even though vinyl covers are also sometimes used to prevent mattress infestation, bedbugs can flourish in a variety of locations indoors. If you think a bedbug infestation, contact your pest control professional for an evaluation.