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

Last August,a study in the journal Sleep Medicine said children who go to bed after nine o'clock took longer to fall asleep and slept less.

VOA: special.2010.06.09

"One of his famous stories: you can't go to sleep with a full stomach with your neighbor hungry.

VOA: standard.2010.05.20

Armah says he's figured out how to get through the hard day. "The best thing for you to do is to go and sleep, and you'll not feel very hungry,".

VOA: standard.2009.09.26