Karolinska Sleepiness Scale

The Karolinska Sleepiness Scale (8) is comparable to the SSS. The choice here is among nine descriptive statements (phrases that describe the subject s state). Here the statements specifically refer to how the patient felt in the previous 10 min. 

Table 14-3, The Karolinska Sleepiness Scale with Home and Reyner s (1995) verbal labels.

Figure 14-16, Average fatigue rating on the Karolinska Sleepiness Scale during the warm-up period and the test period in the placebo (Control) and Active (Energy drink) conditions (from Reyner and Home, 2002, with permission from Elsevier).

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