Eight Sleep said it was free-cash-flow positive in 2025, and plans to use the new funding for new products, global expansions, and clinical validation.

Could the deepest parts of the brain hold some of the secrets of sleep that still remain elusive to science? A team from ...

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. The Apple Watch has a ...

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 ...

Getting a good night's rest is critical to your wellbeing, but it isn't always easy to go to bed or sleep through the night. Life Kit's here to help you and your loved ones achieve optimal sleep.