A one-sided adhesive mat for monitoring the presence of bed bugs (Cimex lectularius). The set contains 4 traps. The bed bug trap serves primarily as a prevention against infestation of bed mattresses by bed bugs. Bed bugs are primarily attracted by body heat and the carbon dioxide that humans exhale. If it is known that there is a bed bug infestation in the area, this adhesive trap serves as a preventive defense against them entering the mattress. In case of room infestation by bed bugs, we recommend professional pest control.