How is the percentage of wake time calculated during sleep?

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Prepare for the AASM Sleep Technologist Test. Enhance your knowledge with flashcards and multiple-choice questions, each offering hints and detailed explanations. Get confident for your exam!

Multiple Choice

How is the percentage of wake time calculated during sleep?

Explanation:
The key idea is that you’re measuring how much of the actual sleep period was interrupted by wakefulness. So you take the minutes spent awake during the sleep period and divide by the total time spent asleep, then multiply by 100 to get a percent. In other words, minutes of wake during sleep ÷ total sleep time × 100. Using the total recording time would include periods outside the sleep attempt, which would distort the measure, since the focus is on the sleep interval itself, not the entire recording.

The key idea is that you’re measuring how much of the actual sleep period was interrupted by wakefulness. So you take the minutes spent awake during the sleep period and divide by the total time spent asleep, then multiply by 100 to get a percent. In other words, minutes of wake during sleep ÷ total sleep time × 100.

Using the total recording time would include periods outside the sleep attempt, which would distort the measure, since the focus is on the sleep interval itself, not the entire recording.

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