Advanced Sleep Monitoring
Sleep monitoring technology analyzes heart rate, HRV, blood oxygen, respiration and activity level data. Every night, you go through different sleep stages that alternate in cyclic waves: light sleep, deep sleep and REM (Rapid Eye Movement) sleep.
Stage 1. Light Sleep: As your body prepares to enter deep sleep, eye movement and muscle activity decreases. This kind of sleep helps your body relax.
Stage 2. Deep Sleep: During deep sleep, eye movement and muscle activity totally stops and your heart rate and breathing slow. Your body enters a restorative mode, building bone and muscle tissue and boosting immune function.
Stage 3. REM Sleep: As you leave deep sleep, the length of each cycle increases from shorter to longer periods. REM sleep is when we dream, a time when the brain is almost as active as when awake.
* Some devices do not support blood oxygen and respiration rate sensing.
How can you improve sleep quality?
- Cultivate regular sleep patterns, try to go to sleep and get up at regular times.
- Before sleeping, avoid stimulants and try to eat in moderate amounts. This way you can avoid indigestion or hunger pangs that can affect your sleep quality.
- Try to partake in some physical activity in the evening. Increasing the difference in your body temperature between daylight and night can promote deeper sleep.
Many other factors can influence sleep quality, including age, environment, shifting between time zones, your previous night's sleep quality, medication, alcohol consumption, and sleep disorders such as hypersomnia and sleep apnea.
Score Your Sleep Every Night
The sleep tracking widget on Garmin smartwatches analyzes the user’s HRV, respiratory rate, heart rate, body movement, and bedtime to give every night's sleep a score. The watch detects the user’s sleep quality in each phase, which includes light sleep, deep sleep, REM, and being awake. It considers the user’s physiological measurements and the training data during the day to calculate the sleep score and offer feedback. The score can be divided into 4 levels. Score 100: A very good sleep. Your bedtime is enough and your sleep is mostly restorative sleep. Score 80-99: You are sleeping well and have sufficient rest. Score 50-79: You have a moderate amount of sleep. Score 0-49: Your sleep quality should be improved. We suggest users track their sleep every day and gradually adjust your sleep routine to get a healthy amount of rest. To get a more accurate score, it is recommended that users wear the watch on the wrist all day.
* The sleep score widget feature is only available on fēnix 6 and MARQ series.