Overall, 62 percent claim the winter holiday season is their busiest time of year in their lives. Christmas season insomnia? Sixty-two percent of those kids insist on staying up late on Christmas Eve in an attempt to catch Mr. Claus in the act. For at least one in three (37%), it’s easier to sleep the night after a major holiday. On average, respondents need three days to pass after the holiday season before they can sleep soundly again.