Important: Sleep Sensing is only available on Nest Hub (2nd gen).
Use Sleep Sensing on the Google Nest Hub (2nd gen) to help you get a better night’s rest and improve your overall wellness. It tracks your sleep, measures your breathing and detects what could be disturbing you at night, like coughing or snoring. As it gets to know your sleep patterns, you receive personalized insights and tips to improve your sleep.
Each morning on your display, you should receive a sleep summary of how well you slept the night before. You can also track your sleep history over time with the Google Fit app. Learn how to view sleep information.
Sleep Sensing is not intended to diagnose, cure, mitigate, prevent, or treat any disease or condition. Consult your healthcare professional for questions about your health.
Enjoy a preview of Sleep Sensing at no extra charge. As we learn and innovate on this new technology, we’re excited to explore how this can become a part of the Fitbit and Google Health Premium experiences in the future. We will keep you updated on any future plans related to Fitbit and Sleep Sensing. Learn more.
Sleep Sensing is not currently available in all languages or countries.
How it works
Sleep Sensing uses Motion Sense to track the sleep of the person closest to the display. Motion Sense uses a low-energy radar to detect movement and breathing. Other sensors in Nest Hub (2nd gen) detect sounds like snoring and coughing and environmental factors like light and temperature in the room.
Sleep Sensing can then determine not just when you went to bed and how long you slept but also the quality of your sleep. Once you’ve set up Sleep Sensing, all you have to do is sleep as usual in the spot you configured. There’s nothing to wear or remember to charge. You should begin to get your sleep results the next day.
The Nest Hub (2nd gen) doesn’t have a camera, so no distinguishable images of your body or face are generated or used with Sleep Sensing. Audio collected during Sleep Sensing is processed on your Nest Hub (2nd gen) only, and it isn't sent to Google. You can customize your sleep settings for additional privacy.
For example, you could set or configure your Nest Hub (2nd gen) to not record sleep disturbance events like coughing and snoring.
Sleep Sensing features are subject to your permissions and settings. They use motion, sound and other device and sensor data to work. It also requires you to place the device close to the bed and calibrate the device for your sleeping area.
If you turn on Sleep Sensing, your sleep-related data is shared with your voice assistant and should be available in the Google Fit app. Google doesn't use your sleep data for ad personalization, and you can review and delete your data any time.
Learn more about the privacy safeguards built into Sleep Sensing, sensors in Nest Hub (2nd gen), and Google's commitment to privacy in the home.
Set up and manage Sleep Sensing
What you need
Important: This feature doesn't work on devices linked with a Google Workspace account (Business, Nonprofits, Education, and others.)
- Nest Hub (2nd gen) with Motion Sense on
- Latest version of the Google Home app
- Latest version of the Google Fit app
- Your voice assistant
- A personal Google Account
Set up Sleep Sensing
To set up Sleep Sensing:
- Open the Google Home app
.
- Tap Home
All devices
, then touch and hold your device's tile.
- Tap Settings
- To allow Sleep Sensing on your display, follow the in-app instructions.
- Tap Set a bedtime schedule then choose what time you plan to regularly go to bed and wake up.
Optional: The following features can be turned on to provide you with additional information to better track your sleep and give you educational sleep tips:
- Sound events tracking
- Personalized sleep suggestion
- To finish the setup, calibrate your sleep spot.
.
Calibrate your sleep spot
To use Sleep Sensing, you need to calibrate your display to recognize where you sleep.
- From the bottom of your display, swipe up.
- Tap Settings
- Tap Sleep Sensing
- Follow the on-screen instructions on your display.
Note:
- Since Sleep Sensing monitors the spot where you usually sleep, children, pets, and other family members sleeping in that spot affect your data.
- Device placement, motion and other devices nearby might lead to inaccurate readings.
- Sleep Sensing is designed to only show coughs and snores that come from your calibrated sleeping area. Any coughing or snoring that happens outside of your area is filtered and appears on the Other sounds timeline. This timeline also shows other loud noises.
- Please make sure you inform people nearby that Sleep Sensing on your Nest Hub might process their sounds, and get their permission before you turn it on.
After successful setup, Sleep Sensing should automatically detect sleep when you're in your calibrated sleeping area.
When the Sleep Sensing indicator 
- To pause Sleep Sensing, swipe up from the bottom of your display, then tap Sleep Sensing
.
- To unpause, tap Sleep Sensing
Tip: The Sleep Sensing indicator
You have control over how your data is used. Sleep Sensing is off by default on Nest Hub (2nd gen). Once you’ve set up Sleep Sensing, at any time you can:
- Review and delete your sleep-related data in your Google Fit app settings.
- Disconnect your assistant from your Google Fit or assistant settings.
- Hide personal results from appearing on your display in the Google Home app.
- Hide just your Proactive health & fitness results like sleep data on your display by turning off Proactive health & fitness results for your Nest Hub.
- Turn off personal results for your Nest Hub (2nd gen) in the Google Home app.
- Review and delete your assistant activity at myactivity.google.com.
- Turn off Sleep Sensing and Sleep Sensing settings. For example, sound events tracking and personalized sleep suggestions.
To deactivate Sleep Sensing on your display:
- Open the Google Home app
- Tap Home
- Tap Settings
- Tap Deactivate Sleep Sensing
When you turn off Sleep Sensing, Nest Hub (2nd gen) stops the collection of sleep data immediately. However, personalized insights and sleep summaries based on previous data might already have been sent to your display. It can take up to 4 days for these messages to expire.
Check your sleep information
In the morning, you can get a summary of your previous night’s sleep and weekly sleep trends, and get personalized tips after about a week. You can also ask questions about your sleep patterns in general. You can access your data on the Wellness page of your display, your Google Fit app, or by saying “Hey Google” followed by any of the sample voice commands:
- "How did I sleep last night?"
- "When did I go to bed yesterday?"
- "How much REM sleep did I get last Friday?"
- "Tell me about my sleep stages from last night."
- "How can I sleep better?"
To get your sleep summary, tap your display's screen 
To have your sleep summary appear on your Nest Hub (2nd gen):
- Allow personal results on your Assistant-enabled device.
- Turn Web & App Activity on in your Google Account.
When you enable these features, anyone with access to your display can access or delete your sleep summary.
To receive answers from your voice assistant related to your sleep information:
You can find several aspects of your previous night’s sleep on your summary, including duration, schedule, and quality of your sleep. When you’ve slept well, each circle in your summary will align and turn purple. Tap Your sleep to view each circle in more detail.
Sleep circles
| Schedule | Shows when you got into bed, fell asleep, woke up, and finally got out of bed alongside your planned bedtime schedule. |
| Duration | Reviews your total time asleep and how it compares to your usual duration or general recommended guidelines. This includes when you went to bed, woke up, and if you got up during the night. You can also check how long it took you to fall asleep to understand how much time you’re actually sleeping when you go to bed. |
| Quality | Shows how restful your sleep was. This includes when you were sleeping, times you got up, restless periods, and how you progressed between different stages of sleep. You can compare your results to sleep-disrupting factors like your room’s temperature, disturbances, or light changes in your room. Coughs and snores attributed to you will be shown on the “Coughing” and “Snoring” timelines. Other loud sounds that occur during your sleep will be shown on the “Other sounds” timeline. |
Sleep staging
During sleep, your body cycles through stages that are essential for physical and emotional wellbeing, and optimal physical and cognitive performance. With sleep staging, you can access information about your light, deep, REM, and awake periods throughout the night.
Why sleep staging? Our brain has special neurocircuitry to coordinate sleep stages. By having enough undisrupted sleep, you’ll usually go through all of the stages necessary for someone of a similar age, gender, and genetic makeup. Most people cycle through stages 4 to 6 times a night, sometimes with a brief awakening between cycles.
Most of your deep sleep is in the first 4 hours of sleep, and the longer you sleep, the more REM or dream sleep you have. You should spend the majority of your night in light sleep. The most important determinant of whether you get enough of each stage is whether you allow yourself adequate opportunity to get the sleep you need.
You can find percentage breakdowns of your sleep stages on the Duration screen. On the Quality screen, you can find out how your night progressed and correlate your sleep patterns to room disturbances like coughs, snores, or loud sounds. You can use this information to learn more about your typical sleep patterns and help you understand things that are out of the ordinary.
To access your respiratory wellness from your display’s Wellness page, tap Your sleep and then swipe left. Tap Weekly trend to compare your days over the past week.
- Respiration rate (RPM): Measures the average number of breaths you take per minute, and how variable your breathing is during that sleep period. Your RPM range is the top 95% and bottom 5% of the night’s data.
- Sleep disturbance events: Shows disturbances during sleep, such as coughing or snoring.
Tip: Device placement and nearby people, pets, or noises can cause inaccurate readings.
As Sleep Sensing gets to know your sleep habits and patterns, you’ll receive personalized insights and recommendations to help improve your sleep. You’ll begin to get these tips after a week of daily sleep tracking.
Review insights and personalized sleep tips on your Nest Hub (2nd gen) as they become relevant. Once available, your sleep report and recommended schedule can be accessed by tapping your Nest Hub’s screen when it’s in ambient or photo mode
| Sleep tips | These contain suggestions and educational content to help improve your sleep. |
| Sleep report | This contains a summary of insights, education, and tips related to your sleep. Insights are things that Nest Hub noticed about your recent sleep that could be improved. Your report also includes education from third-party sources, explaining reasons for the insights and tips on how to improve. You’ll receive updated sleep reports when additional personalized insights are available, though these might not always appear. |
| Recommended schedule | After 14 days of consecutive sleep tracking, you’ll receive a personalized recommendation for when to go to bed and wake up. Updating your schedule could help improve your sleep. |
| Sleep stage progression | A chronological overview of how sleep stages change over time during the night. |
| Wake points | These show your normal awakenings that tend to happen in and around REM, with transitions to the next sleep cycle (4-6 times a night). |
| % per stage | The breakdown of last night’s wake, light, deep, and REM percentages relative to the amount of time slept. |
| Time per stage | The breakdown of last night’s wake, light, deep, and REM in hours and minutes. |
Your voice assistant only stores your sleep data temporarily and uses it to give you info about your sleep, health and fitness. This data also helps troubleshoot and improve your health and fitness experience with your assistant.
Once your voice assistant successfully fulfills your request to update, show, or answer questions about your sleep-related data, Google deletes your audio query. The text from your query and other voice assistant usage information that's kept is used to troubleshoot, develop and improve assistant services.
Sleep Sensing Preview Frequently asked questions
You can enable and disable the Sleep Sensing preview at any time during the preview period.
Yes. You can find, view, and access your stored data in the Google Fit app at any time. Learn how to delete your data from Google Fit.
When you opt into Sleep Sensing, you don’t need to provide payment details for this trial.
If you don’t set up the preview when you set up your device, you can go back later at any time to set it up.