Applies to: Sleep Number® app, SleepIQ® account
The My Biosignals section in the Sleep Number® app shows your nightly average heart rate, heart rate variability (HRV), and breath rate for each sleep session. These biosignals are recorded as averages, not real‑time measurements, and help you track changes in wellness and sleep patterns over time. You can view 7‑day and 30‑day trends for deeper insights into consistency and recovery.
What Are Biosignals in the Sleep Number® App?
Your Sleep Number® smart bed automatically tracks three key biosignals during each full sleep session:
- Average heart rate (BPM)
- Heart rate variability (HRV)
- Breath rate (BrPM)
These metrics help you:
- See how your body responds to stress, activity, and sleep quality
- Track long‑term trends
- Identify changes in your nightly wellness data
Because biosignals are averaged, they are best used for trend monitoring, not moment‑to‑moment analysis.
Important:
The Sleep Number® app and smart bed are not medical devices and do not provide diagnostic data. Contact your doctor with questions about your health or unusual patterns in your biosignals.
What the App Measures
Average Heart Rate (BPM)
Shows the average number of heartbeats per minute during your sleep session.
Heart rate can vary based on:
- Fitness level
- Stress
- Alcohol consumption
- Age
- Overall health
Spikes or dips in nightly heart rate can affect your SleepIQ® score.
Heart Rate Variability (HRV)
HRV reflects the variation in time between heartbeats, which can indicate:
- Recovery quality
- Stress load
- Physical readiness
Higher HRV often means better recovery; lower HRV may indicate fatigue or stress.
Breath Rate (BrPM)
The number of breaths per minute you take during sleep.
This can change with:
- Stress
- Illness
- Sleeping position
- Activity levels
How Biosignals Are Measured
Biosignals are:
- Collected automatically through the full‑body sensor in your smart bed
- Averaged across the entire sleep session
- Updated each morning based on your latest sleep
The system is designed to prioritize consistency and long‑term trends, not real‑time readings.
How to View Your Biosignals in the Sleep Number® App
Follow these steps to see your nightly metrics:
1. Open the Sleep Number App
Launch the app on your mobile device.
2. Go to the Sleep Tab
Your nightly data appears on the Sleep screen.
3. Find the “Biosignals” Section
You’ll see:
- Average Heart Rate (BPM)
- Heart Rate Variability
- Breath Rate (BrPM)
4. Tap “View Details” for More Insights
Here you’ll find:
- Rolling 7‑day trend
- Rolling 30‑day trend
- Minimum, average, and maximum values
Why Biosignal Trends Matter
Tracking biosignals over time helps you:
- Identify improvements in recovery or sleep quality
- Recognize patterns related to lifestyle changes
- Understand how consistent routines impact your health
- Notice when something is outside your usual range
Consistency in sleep and wellness can positively support your nightly biosignal values.
Important Notes About Biosignals
- Biosignals are not recorded in real time.
- The system is not intended for medical use.
- Averages are designed to show big‑picture changes, not second‑by‑second data.
- You may see differences between your biosignals and your sleep partner’s due to unique body characteristics, age, weight, conditioning, and health.
If you have concerns about your biosignals, speak with your healthcare provider.
Frequently Asked Questions
Why don’t my biosignals match my partner’s?
Everyone’s heart rate, HRV, and breath rate are influenced by unique physiology and daily activity.
Why don’t I see real‑time heart rate?
The smart bed records averaged biosignal data during sleep, not continuous real‑time monitoring.
Why did my heart rate spike last night?
Stress, alcohol, activity level, or irregular sleep can all affect nightly averages.
Why are my HRV readings lower than usual?
Common reasons include fatigue, illness, lack of sleep, diet changes, or increased stress.