Falling asleep quickly can feel impossible for many people. Doctors explain how the body and brain transition into sleep and why stress often delays the process. Certain breathing and relaxation ...

Most adults wish they could catch more ZZZs for better health, sharper focus or simply to wake up feeling rested. Despite that desire, sufficient sleep remains elusive for millions. About one in three ...

The following story is excerpted from TIME’s special edition, The Science of Sleep, which is available at Amazon. Anyone who has nodded off on the subway, faked alertness in a meeting at work or ...

Visualize a child in deep sleep. It’s hard to imagine a more calming image; I can feel my own heart rate slow as I write this. I keep photos of each of my sleeping babies (no longer babies) to ...