The No-Sleep Secret

Renata Pellegrino, senior research associate at The Children’s Hospital of Philadelphia and the lead author of "A Novel BHLHE41 Variant is Associated with Short Sleep and Resistance to Sleep Deprivation in Humans", and Dr. Allan Pack, Head of the Center for Sleep and Circadian Neurobiology at the University of Pennsylvania, explain how a gene mutation may be responsible for those people who seem to do just fine with barely five hours of sleep a night.