what is normal sleep efficiency percentage
SLEEP EFFICIENCY (%) â The percentage of time asleep compared to the time spent in bedâ Basically the quality of oneâs sleepâ Normal adult value is 90% or greaterâ The âlaboratory effectâ allows for a 75% efficiency in the sleep lab environmentFORMULA:â¢ SE %= Total Sleep Time (TST) Ã· Total Recording Time (TRT) x 100%.