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.

Sleep Doctor Offers Tips for Safe CPAP Use Amid COVID Pandemic

Patients should keep using the machines unless they are infected with or exposed to COVID-19.