Sleep & Recovery

Sleep Efficiency

Name: Sleep Efficiency - Performance Biomarker Guide
Creator: Ocean Path Ventures LLC
Published: 2025-10-01

Percentage of time in bed actually spent asleep

Sleep QualityCategory

Normal: >85%Reference

>90%Reference (unattributed, from device vendor docs)

Why Sleep Efficiency matters

Measures sleep quality and consolidation. Low efficiency indicates difficulty falling or staying asleep.

Reference Range

Normal: >85%

Reference (unattributed, from device vendor docs)

>90%

We have not yet verified a published source for a Sleep Efficiency target. The value above comes from device vendor material and is shown as a reference only. How we verify ranges.

Devices that measure this

Devices in our comparisons whose published specs list this metric:

Compare sleep trackers

Track Your Sleep Quality

Monitor Sleep Efficiency with wearables and health tracking devices

View Wearables All biomarkers

Health Disclaimer

This information is for educational purposes only. Consult a healthcare provider for personalized health recommendations.

Written and maintained by Ocean Path Ventures LLC, the site's publisher. It is not a clinical practice, and this page was not written or reviewed by a clinician.

Last reviewed Sep 23, 2026 · First published Oct 1, 2025