A new study found better results in four-year-olds who go to bed around the same time every night and sleep at least eleven hours.

VOA: special.2010.06.09

For the study,they aimed for at least ten hours of sleep each night during the season.

VOA: special.2010.06.09

Adults should try to get seven to eight hours of sleep a night.

VOA: special.2010.06.09

During the quiet hours of the night she lay awake considering ideas.

VOA: special.2009.09.05

She says being a mom is hard. "Because you have to get up every two hours in the middle of the night, and you can't go out and say 'I am going to buy this for myself.'

VOA: special.2010.05.13

The system effectively controlled participants' blood sugar for 27 hours, during which time they ate three high-carbohydrate meals and slept through the night at a hospital.

VOA: standard.2010.04.15

Endeavour's last scheduled night launch went smoothly in the pre-dawn hours Monday.

VOA: standard.2010.02.08