---
title: Can a small device measuring skin temperature during sleep predict your menstrual cycle phase?
description: Yes. A computer method using skin temperature measurements during sleep successfully identified menstrual cycle phases in most cases, correctly identifying ph
url: https://niyora.com/research/papers/hmm-based-estimation-of-menstrual-cycle-from-skin-temperature-during-sleep-2008/
---

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- Can a small device measuring skin temperature during sleep predict your menstrual cycle phase?

Study, 2008

# Can a small device measuring skin temperature during sleep predict your menstrual cycle phase?

Yes. A computer method using skin temperature measurements during sleep successfully identified menstrual cycle phases in most cases, correctly identifying phases 92.0% of the time.

 Early or limited evidence

30 women monitored for 6 months

## What they did

Thirty women wore a small device that recorded skin temperature during sleep for 6 months. Researchers applied a computer algorithm to the temperature data to try to identify menstrual cycle phases.

## What they found

The method correctly identified the menstrual cycle phase 159 out of 173 times, achieving 92.0% sensitivity.

## What it means for you

Skin temperature patterns during sleep might be used to automatically track menstrual cycle phases. This is a proof-of-concept study showing the method works in the lab, but it needs testing in real-world conditions before it can be recommended for regular use.

30

women studied

6 months

data collection period

92.0%

sensitivity

## About the study

Original title HMM-based estimation of menstrual cycle from skin temperature during sleep Authors Chen W, Kitazawa M, Togawa T Journal Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference Year 2008 Study design Study Participants 30 What was tested Testing a computer method to estimate menstrual cycle phase from skin temperature during sleep Read the paper [doi.org/10.1109/iembs.2008.4649487](https://doi.org/10.1109/iembs.2008.4649487)

## Topics

[Sleep and insomnia](https://niyora.com/research/topics/symptom-sleep/)

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