Pyramid Bed Bug Under Sheets fit snugly over mattresses to protect against crawling or biting insects. These lightweight soft 100% polyester mesh single bed sheet and separate pillow case are impregnated with Zi Technology, a Permethrin based insect repellent treatment that kills bugs instantly on contact. A unique binding agent used in conjunction wit this treatment ensures these sheets will be effective for up to 35 washes. Bedbugs (Cimicidae): Are found world-wide, particularly in hostels and hotels where bedding is not regularly cleaned. Although bedbugs are not regarded as disease carriers, their blood feeding can cause severe irritation. Zi Technology treatment: As a pyrethroid, Zi Technology will act as an extra layer of protection on your net, repelling insects and killing any that come in contact with it. The active ingredient Permethrin is active for up to 2 years or 35 washes.
