You might need to write a different request letter to ask someone who you should write to. In this case, still follow these steps for writing a request letter. Learn the format for a business letter. Your request letter should use the proper business letter format, as it is likely a formal request.
The Epworth Sleepiness Scale (ESS) is a scale intended to measure daytime sleepiness that is measured by use of a very short questionnaire. This can be helpful in diagnosing sleep disorders. It was introduced in 1991 by Dr Murray Johns of Epworth Hospital in Melbourne, Australia.
SLEEP EFFICIENCY (%) â The percentage of time asleep compared to the time spent in bedâ Basically the quality of oneâs sleepâ Normal adult value is 90% or greaterâ The âlaboratory effectâ allows for a 75% efficiency in the sleep lab environmentFORMULA:â¢ SE %= Total Sleep Time (TST) Ã· Total Recording Time (TRT) x 100%.