These can take the form of flat rubberized flannel pads (commonly used under a bed sheet for infants) or special breathable fitted covers. The plastic pads are hot to sleep on and change the feel of the mattress. A urethane laminate on cotton that has good wicking properties is an alternative to a rubberized flannel pad. A protector with a thin laminate that is not pulled too tightly across the bed will not change the feel of the bed. Also, the laminate is still breathable which means that it will not trap body heat. Waterproof mattress protectors also reduce allergy symptoms by reducing the ability of mold to grow in a mattress. Mattress protectors which can be easily disinfected are commonly used in children’s nurseries and health care facilities.