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From Research to Bedside: Sleepal’s Contactless Sleep Study Published in Physiological Measurement

Sleepal Algorithm TeamOctober 13, 2026

This is an important milestone for Sleepal and a step forward for contactless sleep monitoring.

Contactless Sleep Research, Published in an Academic Journal

Sleepal’s sleep research has recently passed peer review and been published in Physiological Measurement, an international academic journal published by IOP Publishing.

A person sleeping beside the Sleepal AI Lamp

1,022 Overnight Recordings, Validated Against PSG

The study used 1,022 overnight sleep recordings to validate the Sleepal AI Lamp’s AI-based sleep staging against polysomnography (PSG), the gold standard for sleep assessment.

On an independent validation set, Sleepal achieved 77.2% accuracy in four-stage sleep classification, with a Cohen’s kappa of 0.677, showing a high level of agreement with PSG.

The Breakthrough of Sleep clinical research paper

Sleepal’s clinical study achieved Kappa scores exceeding top-tier wearables.

  • Sleepal0.695
  • Apple Watch0.680
  • Oura Ring0.650

Making Sleep Monitoring a Natural Part of Every Night

For us, this research is about more than performance metrics. It opens up a new possibility:

Understanding your sleep does not have to mean wearing a device every night.

By combining millimeter-wave radar with AI, we hope to make sleep monitoring a natural part of the bedroom, helping more people understand their sleep without disturbing it.

From research to bedside, we aim to make technology a more natural way to care for your sleep, night after night.

Sleepal AI Lamp on a bedside table in a sunlit bedroom

Read the Paper

A Contactless Approach for Accurate Sleep Stage Detection Using the Sleepal AI Lamp

https://doi.org/10.1088/1361-6579/aeb104

Sleepal
Sleepal

At Sleepal, our mission is to awaken your potential through better sleep, naturally. We believe great technology should care for you, not complicate your life. Working quietly from your bedside, Sleepal helps you understand your sleep, wind down, and wake up gently.