Humans 'May Need More Sleep in Winter', Study Finds

For those of us who struggle to leave our beds in the winter, taunts of "lazy" could well be misplaced. From a report: New research suggests that while humans do not hibernate, we may need more sleep during the colder months. Analysis of people undergoing sleep studies found that people get more REM (rapid eye movement) sleep in the winter. While total sleep time appeared to be about an hour longer in the winter than the summer, this result was not considered statistically significant.
However,