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Stanford Sleepiness Scale (SSS)
Availability
Please visit this website for more information about the instrument: Stanford Sleepiness Scale
Classification
Supplemental: Myalgic encephalomyelitis/Chronic fatigue syndrome (ME/CFS), Parkinson’s Disease
Short Description of Instrument
The Stanford Sleepiness Scale is used to quantify current sleepiness either during the day or night. The question measures where the participant rates their current level of sleepiness from 1=feeling active, wide awake to 7=no longer fighting sleep.
 
Population: Adults
Rationale/Justification
Advantages: Instrument is freely available. Very brief and easy to administer throughout the day.
References
Hoddes E, Zarcone V, Smythe H, Phillips R, Dement WC. Quantification of sleepiness: a new approach. Psychophysiology 1973;10:431–436.
Recommended Instrument for
ME/CFS, PD
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