What sleep efficiency score range is classified as normal?

Sleep efficiency is a measure of the proportion of time spent asleep while in bed. It is calculated by dividing the total time spent asleep by the total time spent in bed, multiplied by 100 to express it as a percentage. A normal sleep efficiency score indicates that an individual is getting an adequate amount of restorative sleep within the time they allocate for sleep.

The classification of normal sleep efficiency typically ranges from 80% to 94%. This range is supported by clinical guidelines and sleep studies that indicate individuals falling within this range are likely achieving enough sleep to feel rested and function well during the day. Scores below this range could indicate potential sleep disturbances or insomnia, while those above could suggest excessive time spent in bed relative to sleep achieved, which may also be problematic.

Understanding this range is critical for identifying potential sleep disorders and guiding interventions. It is essential for practitioners to assess sleep efficiency in the context of overall sleep quality and individual health circumstances.