Three in 10 U.S. adults have trouble sleeping, nearly as many experience daytime sleepiness and many play catch-up on their days off work to erase sleep deficits, a new study suggests. Photo by Wokandapix/Pixabay Nov. 8 (UPI) -- Three in 10 U.S. adults have trouble sleeping, nearly as many experience daytime sleepiness and many play catch-up on their days off work to erase sleep deficits, a new study suggests. The study's results "underscore that sleep disturbances remain a major challenge for promotion of healthy sleep in the U.S.," the scientists said. Advertisement In addition to frequent sleep disturbances, high percentages...