FitbitWhoopConsumer Rights
The Sleep Debt Problem: Why Your Wearable's 'Hours Behind' Number Is a Fiction
Your wearable thinks sleep is a bank account. Sleep six hours instead of eight, and your app tells you you're 'two hours behind.' This is not how sleep works. Sleep is regulated by two biological processes that do not use arithmetic, and the idea that you can store or repay hours is a marketing fiction.
James Hoffmann Jun 12, 2026 · 1 min read