Why the eight-hour sleep myth is fading—and what works instead
The traditional advice of sleeping eight hours a night has changed. Experts now recommend 7-9 hours for adults, with recent studies suggesting 7-8 hours may be ideal for longevity. Meanwhile, a new wellness trend called clean sleeping is gaining attention, backed by celebrities like Gwyneth Paltrow and Arianna Huffington.
For years, the eight-hour sleep rule was widely accepted. But organisations like the American Academy of Sleep Medicine, Sleep Research Society, and National Sleep Foundation now agree that 7-9 hours is optimal. A major study of over 100,000 people found that those sleeping 7-8 hours had the lowest mortality risk, though needs vary by age, gender, and sleep quality. Women, for example, may benefit from an extra 20 minutes, while older adults might require slightly less.
Despite these guidelines, more than half of Americans regularly miss out on enough sleep. Three-quarters struggle to fall asleep frequently, leading to problems like poor concentration, reduced performance, and higher risks of chronic illnesses such as depression, heart disease, and diabetes.
Clean sleeping—a term popularised by Paltrow and Huffington—focuses on improving sleep quality through strict habits. Paltrow claims to sleep 10 hours a night and avoids naps, aligns her schedule with sunrise and sunset, and follows bedtime rituals. She also recommends turning off Wi-Fi, switching phones to airplane mode, and using copper-infused pillowcases, though research on their benefits remains limited.
Other clean sleeping tips include avoiding sugar, alcohol, and late caffeine, as well as eating lighter dinners. A consistent sleep routine and cutting back on evening screen time are also advised to help people feel more rested.
The shift from an eight-hour standard to a 7-9 hour recommendation reflects updated scientific findings. At the same time, clean sleeping offers practical steps for those struggling with poor rest. While celebrity-backed trends like copper pillowcases lack strong evidence, habits such as reducing technology use and maintaining a regular sleep schedule have proven benefits for better health.
