In sleep studies researchers have found that there is a progression of temporal symptoms (or perceptions of time) that indicate increasingly severe sleep deprivation. As you go down this list note your answers.
Please be aware there are other causes besides sleep deprivation for these symptoms, contact your doctor if you are experiencing these symptoms and are not having troubles with sleep.
74) Does time seem to pass slowly, or to be “different” in duration?
75) Do you have occasional mistakes in thinking about time but find yourself correcting that spontaneously?
76) Do you have occasional mistakes in thinking about time and not recognizing the error until someone questions you?
77) Do you make frequent mistakes about time which you believe to be correct and are uncertain when someone confronts you?
78) Do you or have you been very disoriented in time or had an unshakable belief in your concept of time that was seen as mistaken by others?
An answer of yes to question number 74 is not at all unusual for someone who has slept badly for a coule of nights, or someone who is bored at work or school.
Answers of yes to questions number 75 and 76 shows there is some indication that you are probably sleep deprived and starting to suffer functional impairment (for instance, you shouldn't be driving in this condition).
Answers of yes to questions 77 and 78 show significant sleep deprivation and impairment.
Visual Misperception Scale
Cognitive Disorganization Scale
Other Impairment Options
Sleep Impairment
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