Prenatal maternal pesticide exposure in relation to sleep health of offspring during adolescence

•This study is the first to examine the links between in utero pesticide exposure with repeated objective measures of sleep health among adolescent offspring.•Higher maternal exposure to TCPy, a metabolite of chlorpyrifos, was associated with longer sleep duration and later sleep timing among female offspring.•Study findings have substantial public health implications given the widespread exposure to regulated pesticides, such as TCPy.