athens insomnia scale athens insomnia scale in medicine, insomnia is widely measured using the athens insomnia scale (ais). ais was first introduced in the year 2000 by a group of researchers from athens, greece to assess the insomnia symptoms in patients with sleep disorders. athens insomnia scalepurposemeasure insomnia measure it is measured by assessing eight factors (as tabulated below) amongst which first five factors are related to nocturnal sleep and last three factors are related to daytime dysfunction. these are rated on a 0–3 scale and the sleep is finally evaluated from the cumulative score of all factors and reported as an individual's sleep outcome. over the period of time, ais is considered to be an effective tool in sleep analysis, and it is validated in various countries by testing it on local patients. a cut-off score of ≥6 on the ais is used to establish the diagnosis of insomnia. sleep factorsathens insomnia scale sleep induction0: no problem1: slightly delayed2: markedly delayed3: very delayed or did not sleep at all awakenings during the night0: no problem1: minor problem2: considerable problem3: serious problem or did not sleep at all final awakening0: not earlier1: a little earlier2: markedly earlier3: much earlier or did not sleep at all total sleep duration0: sufficient1: slightly insufficient2: markedly insufficient3: very insufficient or did not sleep at all sleep quality0: satisfactory1: slightly unsatisfactory2: markedly unsatisfactory3: very unsatisfactory or did not sleep at all well-being during the day0: normal1: slightly decreased2: markedly decreased3: very decreased functioning capacity during the day0: normal1: slightly decreased2: markedly decreased3: very decreased sleepiness during the day0: none1: mild2: considerable3: intense