The Stanford Sleepiness Scale (SSS) can be used to grade the degree of sleepiness that a person experiences.
|
Ability to Concentrate
|
Sleepiness
|
Scale
|
|
maximum; fully alert; feel active and vital;
|
absolutely none; wide awake
|
1
|
|
high level but not at peak
|
none
|
2
|
|
moderate to high, relaxed but responsive
|
minimal not fully alert
|
3
|
|
moderate
|
mild; a little foggy
|
4
|
|
low
|
moderate; foggy; loss of interest in staying awake; slowed down
|
5
|
|
minimal
|
high; sleepy, fighting sleep, prefer to lie down
|
6
|
|
none
|
maximum; almost in reverie, losing struggle to remain awake
|
7
|
