Are sleep trackers accurate?
Sleep trackers don’t measure your sleep directly – to do this, you’d need to take part in a clinical study which monitors brain activity. However they are pretty accurate at measuring movement patterns and heart rate.
This information can give you a good idea of when you went to sleep, how often you woke and what time you woke up. A wearable sleep tracker can help you identify any lifestyle habits that may be affecting your sleep too.
How does a sleep tracker know you’re asleep?
Most devices presume that you’re asleep when you’re inactive. This means that it’s not completely accurate at tracking how long you slept for, but it will help you spot patterns in your sleep habits to help you develop a routine that works best for you.
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How to choose a sleep tracker
These are the main features to consider when choosing a sleep tracker:
Type
Wearable: these can be worn on your body, such as smart watches, rings, fitness bands and headbands. They can track your movement, heart rate, breathing as well as physical activity.
App
Most devices use an app to report the data so make sure you have a phone or tablet that’s compatible.
Data
While all sleep trackers will give you data on your sleep length and movement, others may track your sleep cycles (when you’re in REM, lighter and deeper stages) and environmental factors such as how light, hot and humid your room is.
Trackers can also monitor your lifestyle such as physical activity, exercise and stress levels to give you a bigger picture of your health.
Features
Sleep trackers that feature a heart rate sensor are really useful, especially if it checks your pulse rate throughout the day as you get a better idea of your overall health. Trackers can also check your blood oxygen and stress levels which can help to identify what’s keeping you awake.
If you wake feeling groggy, a tracker with a smart alarm that wakes you at the optimum time in your sleep could help. Wearable trackers like smartwatches and fitness bands also tend to have pedometers to count steps and monitor exercise as well as tracking calories burnt.
While most sleep trackers give you a sleep report, an overall score can be helpful for comparing different nights. One that offers tips for a better night’s sleep is really useful too. Also check how long the battery lasts as some sleep trackers may need charging every day.
Price
You can pick up a decent sleep and fitness tracker for under £50, but smartwatches and dedicated sleep monitors can go up to around £300. Sleep tracker apps are the cheaper option as they can be downloaded for free, but you may need to pay a subscription for extra benefits.
What is the best sleep tracker?
We think the Withings Sleep Analyzer is the best sleep tracker. There’s no need to worry about wearing anything on your wrist or finger – the sensor mat goes under your mattress to track your heart rate, movement, snoring and signs of sleep apnoea, and gives you a full report every morning.
How we chose our recommendations
Most of our recommendations for sleep trackers came from Mumsnet users themselves. We searched the Mumsnet forums for posts about which sleep trackers Mumsnetters really rated. We also researched various review sites to find out which sleep trackers performed well across the board.
Why you should trust us
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