Washington D.C: A child's birth has a drastic short-term effect on new mothers sleep, particularly during the first three months after birth. The research, conducted at the University of Warwick also found sleep duration and satisfaction is decreased up to six years after giving birth for both parents.

In the paper 'Long-term effects of pregnancy and childbirth on sleep satisfaction and duration of first-time and experienced mothers and fathers', a collaboration with the German Institute for Economic Research and the West Virginia University studied sleep in 4,659 parents who had a child between 2008 and 2015.