Using Nightly Recharge™ to Check Your Recovery Status
With Nightly Recharge™, you can check how much you have recovered from the load placed on your body during the day.
The Nightly Recharge™ status is based on two factors: Sleep Charge (the quality of your sleep) and ANS Charge (how calm your autonomic nervous system is during the early hours of your sleep).
Nightly Recharge™
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Important!
Wearing the watch for long periods, sweat, or certain usage environments create the risk of skin rash. To prevent skin problems, regularly remove your watch from your wrist to give your skin some time to rest.
Checking Nightly Recharge™ Status
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Display the current time screen.
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Use (A) and (D) to select [NIGHTLY RECHARGE].
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Press (C).
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Nightly Recharge™ Status
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Status Icons (ANS Charge)
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ANS Charge Score
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Indicator level
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Status Icons (Sleep Charge)
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Sleep Charge Score
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Autonomic nerve status
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ANS Charge Status
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Sleep status
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Sleep Charge Status
This displays the Nightly Recharge™ status summary screen.
The message [NO DATA] appears if there is no data available.
Each press of (A) or (D) cycles between screens as described below.
Note
In the following situations, sleep data cannot be acquired, so [NO DATA] is shown on the display, or the accuracy of sleep analysis may be decreased.
Sleep (from bedtime to wake up) of less than 4 hours
Constantly moving or barely moving during sleep
Wearing the watch only while asleep and taking it off immediately after awaking
Nightly Recharge™ can be used when the conditions below are satisfied.
Heart rate measurement is set to [ON] or [ACTIVITY & NIGHT TIME ON], enabling continuous heart rate measurement.
With [ACTIVITY & NIGHT TIME ON], sleep measurement starts from the time set for NIGHT TIME. For the NIGHT TIME time setting, specify your normal sleep time (bedtime and wake-up time).
The watch is firmly attached to your wrist when you go to bed.
At least three sleep measurements in the past 28 days (one of which was the night before)
To improve sleep analysis accuracy, it may take about one to two hours after you wake up for measurement results to be displayed on the watch.
To interpret a status
Nightly Recharge™ Status
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[VERY GOOD] |
Very Good |
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[GOOD] |
Good |
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[OK] |
OK |
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[COMPROMISED] |
Compromised |
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[POOR] |
Poor |
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[VERY POOR] |
Very Poor |
ANS Charge (Autonomic Nerve Status)
This function quantifies to how much your autonomic nerve system calms down during the night.
Score range: -10 to 10
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Score |
Status |
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-6 or below |
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[MUCH BELOW USUAL] (Much Below Usual) |
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-6 to -2 |
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[BELOW USUAL] (Below Usual) |
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-2 to 2 |
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[USUAL] (Usual) |
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2 to 6 |
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[ABOVE USUAL] (Above Usual) |
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6 or above |
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[MUCH ABOVE USUAL] (Much Above Usual) |
Sleep Charge (Sleep Status)
This function evaluates and quantifies your sleep time and sleep status.
Your score and index are determined by comparing the previous night’s sleep to your average score for the previous 28 days.
Score range: 1 to 100
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Score |
Status |
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-10 or less of average |
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[MUCH BELOW USUAL] (Much Below Usual) |
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-3.33 to -10 of average |
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[BELOW USUAL] (Below Usual) |
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± 3.33 of average |
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[USUAL] (Usual) |
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+3.33 to +10 of average |
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[ABOVE USUAL] (Above Usual) |
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+10 or more of average |
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[MUCH ABOVE USUAL] (Much Above Usual) |