Wearables are now marketed heavily at menopausal women, promising to detect hot flashes, score your sleep and reveal what is happening to your body. Some of what they measure is genuinely useful. Some of it is not accurate enough to act on, and for a subset of people the tracking itself makes sleep worse.

Where we stand: Menova is an independent publication. We sell no devices, we are not your doctor, and this is general education, not medical advice. Some links below are Amazon affiliate links — Menova may earn a small commission at no extra cost to you.

What they measure reasonably well

  • Total sleep time and timing. Broadly reliable, and the most useful thing they produce — most people underestimate how variable their bedtime is
  • Heart rate, at rest, which is reasonably accurate
  • Steps and activity, well enough for tracking trends
  • Skin temperature trends, which is where the hot flash claims come from — devices can detect the temperature and heart rate signature of a vasomotor episode with some success

What they measure badly

  • Sleep stages. Consumer devices infer deep, light and REM sleep from movement and heart rate. Validation studies comparing them with polysomnography — the clinical standard — find sleep staging is the weakest part of what they do. Do not make decisions based on your deep sleep number
  • Sleep quality scores. Proprietary, unvalidated, and not comparable between brands
  • "Readiness" and "recovery" scores. Composite numbers with no clinical meaning
  • Blood pressure, on devices that claim it, unless specifically validated

The reliable rule: the more processed the number, the less you should trust it. Total sleep time is measured; a sleep score is invented.

The problem worth naming

Orthosomnia — anxiety about sleep created by sleep tracking — is a described phenomenon. People sleep worse because they are worried about their score, then check the score, which confirms the worry.

This matters more in menopause than at other times, because sleep is already disrupted and anxiety is already elevated. A bad score first thing in the morning sets the tone for a day you were already dreading.

If you wake up and immediately check your sleep score, and it changes how you feel about the day, stop tracking sleep. That is not a failure of discipline; it is the correct response to a tool that is making things worse.

What a tracker is genuinely good for

Used well, and for a limited period:

Establishing a baseline before a treatment. Two weeks of data before starting hormone therapy or a non-hormonal medication gives you a comparison that memory cannot — see is my dose too high or too low.

Showing patterns you cannot feel. Alcohol is the classic one: many women are genuinely surprised by what a couple of glasses does to their resting heart rate and their night. That is a more persuasive argument than any article — see alcohol in midlife.

Counting wakings, which is what a clinician actually wants and what nobody remembers accurately.

Flagging possible sleep apnea. Some devices report oxygen saturation dips and breathing disturbance. This is a prompt, not a diagnosis — but it is a legitimate reason to ask for assessment, and sleep apnea in women rises sharply after menopause and is badly under-diagnosed; see sleep apnea after menopause.

Making activity visible, which is the least glamorous and most evidence-backed use — see strength training in menopause.

What to do with the data

  • Look at trends over weeks, never at a single night. Night-to-night variation is enormous and meaningless
  • Change one thing at a time — alcohol, caffeine timing, room temperature — and give it two weeks; see caffeine in menopause
  • Bring totals to appointments, not screenshots of scores. "Waking four times a night, averaging five hours, for six months" is clinical information
  • Take it off for a while if it is stressing you

Do you need one?

Honestly, no. Paper does most of this.

A written record of bedtime, wake time, number of wakings, hot flashes, and how you felt out of five gives a clinician everything a wearable does for the things that matter — without the invented scores, the subscription, or the 6am anxiety. Our free 30-day symptom tracker is exactly that, and it is free.

If you want a device anyway, that is reasonable. A basic fitness tracker with sleep and heart rate does the measurable parts as well as the expensive ones. The premium tier buys better scores, not better measurement.

Points worth checking before buying:

  • Subscription required? Several devices lock the data behind a monthly fee
  • Battery life, since a device charging overnight tracks nothing
  • Comfort, because you will stop wearing an uncomfortable one
  • What happens to your data — where it is stored, whether it is shared, whether you can delete it. This is health data, and it is worth a deliberate decision; see how to track your cycle

What no tracker will do

  • Diagnose anything. Not sleep apnea, not menopause, not a heart problem
  • Tell you your hormone levels. Devices inferring "cycle phase" from temperature are estimating, and estimates are unreliable in perimenopause when cycles are irregular — see was that my last period
  • Replace treatment. Knowing precisely how badly you slept does not improve sleep. CBT-I has better evidence than sleeping tablets for chronic insomnia, and it is the actual answer — see menopause insomnia and CBT for menopause
  • Explain fatigue. If you are exhausted, the things to check are thyroid, ferritin, B12, HbA1c and sleep apnea — not your recovery score; see reading your own blood test results

The summary

Use a tracker for a defined purpose and a defined period: establish a baseline, test one change, or gather evidence for an appointment. Ignore the invented scores. Stop if it is making your sleep worse.

And if the data shows you are sleeping badly — which you already knew — the next step is treatment, not a better device.

The free 2-minute Menova self-check organizes your symptom picture — no account, not a diagnosis, and your answers never leave your device.

This article is general education, not medical advice. Consumer wearables are not diagnostic devices. Discuss persistent sleep problems or suspected sleep apnea with a licensed clinician. Some links above are Amazon affiliate links — Menova may earn a small commission at no extra cost to you.

Sources: NHLBI — Sleep Apnea, National Institute on Aging — Sleep, The Menopause Society, and NHS — Insomnia.