One night after lights out, a man sleeping next to his wife began doing something that troubled her deeply. After they had sex, he fell asleep -- and then masturbated. And when he awoke the next ...

Caroline Igo (she/her/hers) was a wellness editor at CNET and holds Sleep Science Coach and Stress Management certificates from the Spencer Institute. She received her bachelor's degree in creative ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Let's talk about one ...

Sleep is a state characterized by a reduced responsiveness to sensory stimuli, suppressed locomotor activity and rapid reversibility to wakefulness. It is a process that is evolutionarily conserved in ...

You lie awake at night staring at the ceiling. You feel like you’re cursed — but you’re not alone. Experts estimate that between 1 in 10 and 1 in 3 people suffer from some degree of insomnia, meaning ...

Sleeping naked may improve sleep quality and support vaginal health and male fertility by encouraging core body temperature regulation. It can also increase feelings of self-esteem and intimacy. To ...

I've tested and reviewed over 200 mattresses and other sleep products. After we tested more than 200 models, the Helix Midnight Luxe proves to be the best mattress overall.