Do medical students in Hong Kong have enough sleep?

This was a cross-sectional study of sleep patterns among Hong Kong medical students. A representative number of 419 medical students with a mean age of 21.2 (SD = 2.1, range 17–32) reported a mean nocturnal sleep of 6.6 h (SD = 1.2 h). About 70% reported having sleep deprivation without significant gender and age differences. Self-perceived stress and long hours of study were found to be the major risk factors for sleep deprivation whereas longer nocturnal sleep duration was its protective factor. Sleep deprivation was common among medical students in this cosmopolitan Asian city. Effective stress management and sleep education should be included in the training of medical doctors.