S. Korean Toddlers Sleep Less than Norm: Poll

SEOUL, Feb. 9 (Korea Bizwire) — South Korean toddlers sleep late and wake up early compared with their peers in other countries, with 6 out of 10 going to bed after 10 p.m., a study showed Friday. According to the study conducted by the Korea Institute of Child Care and Institute, South Korean preschoolers slept [...]