Hatch App via Boutayna Chokrane

Unlike many sleep trackers , the Sleep Clock skips the sleep score, which is a sensible choice given that it doesn't record any physiological metrics to inform an algorithm. Instead, it offers brief nightly notes that summarize your sleep patterns based on its motion sensor data, along with an actionable tip. Beyond that, you'll need to interpret the numbers for yourself. Some people may prefer a sleep score as a quick snapshot, but I appreciate the company's emphasis on presenting the data and letting users draw their own conclusions. Or perhaps Hatch is just saving the sleep score for a future software update.

To evaluate the Hatch’s accuracy, I compared its readings with those from my Apple Watch Series 12 and Oura Ring 5 . (Hatch says the first few nights are a calibration period, so data may be less accurate during this period.) Sleep duration estimates were generally consistent, but the most noticeable variance appeared in the sleep stages.…