Light Sleepers vs. Heavy Sleepers

Light Sleepers vs. Heavy Sleepers

For some people, the slightest noise awakens them at night. For others, the wailing siren of a passing fire truck doesn’t disturb their slumber. Just why, though, remains a bit of a mystery. Although many people are self-proclaimed light sleepers or heavy sleepers,...
Busy Brains Make for Deeper Sleep

Busy Brains Make for Deeper Sleep

Sound sleepers share a surprising secret: a bustling brain. A new study reports that people who can sleep through anything show more frequent bursts of brain activity called sleep spindles than do their light-sleeping counterparts. Researchers say the discovery could...