These Are the Most Common Causes of Sleep Problems

Do you have trouble falling or staying asleep? This may be why.

Two-Phase Sleep: A Trend From Pre-Modern Times

Sleeping a few hours, getting up for a few hours, then going back to sleep was common in the days before electricity.

Conquering Insomnia: 10 Tips for Better Sleep

If you lie awake at night or keep waking up, sleep medicine specialist Bhavna Sharma, MD, has some advice.

Video: Which Sleep Position is Best?

Is your sleep position the key to a good night’s sleep? It may be.

Quiz: Which of These Helps You Sleep Better?

Take this quiz to find out what daily habits improve the quality of your sleep.