Kids who take 30-to-60 minute mid-day naps at least three times a week are happier and have more self-control and grit. They also display fewer behavioural problems as compared to children who skip afternoon naps says a study. Published in the SLEEP journal the study revealed strong connections between the afternoon shut-eye sessions and positive outcomes in a handful of areas in the overall development of kids. A study of nearly 3000 fourth fifth and sixth graders ages 10-12 revealed a connection between midday napping and greater happiness self-control and grit; fewer behavioural problems; and higher IQ the latter particularly