Find out how melatonin can promote sleep and understand possible side effects of this supplement.

June 14 -- FRIDAY, June 13 (HealthDay News) -- Having delayed sleep phase syndrome (DSPS) appears to be linked to irregular menstrual cycles and increased premenstrual symptoms in women, according to ...

On a recent episode of the MTV series "True Life," a high school student suffering from delayed sleep phase syndrome was followed. She finds it impossible to go to sleep at a regular time, instead ...

From snoring partners to night-owl teens, mismatched sleep habits at home can leave the whole family exhausted. Experts explain how different routines and body clocks in multigenerational homes often ...