Consider The Source: With quality sleep one awakens rested and refreshed. This is a subjective measurement. To objectively measure sleep, a polysomnogram is required. This can only be performed in a sleep lab or clinic. While an iphone app may claim to measure sleep quality, the likelihood that it reflects a true measurement of sleep quality is highly questionable. If you feel rested your sleep is likely ok.
Answered 12/17/2017
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