Get a handle on your sleep health with the best sleep trackers for 2024, tested and reviewed

By Aly Walansky, Sep 18, 2024

One thing to keep in mind is that generally, a device needs to be in contact with your body to be able to provide more accurate data. Dr. Alex Dimitriu, a double board-certified expert in psychiatry and sleep medicine, says, “The closer the tracker is to the brain, the more accurate the data. While most people won’t sleep with a head-mounted device, options like mattress pads, watches and rings offer practical and reasonably accurate solutions.” He adds that to categorically know what stage of sleep someone is in, EEG or brainwave data is necessary. Most sleep trackers don’t offer this information. “For most of these devices, the more sensors, the better, as they are all trying to infer sleep and sleep stages based on non-EEG data — like heart rate, movement, breathing, temperature and heart rate variability,” he says.

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