SLEEP EFFICIENCY By N., Pam M.S. - April 13, 2013 a ratio of time in bed versus time asleep and it can be affected by medication, depression and anxiety. It is a ration which is calculated by dividing the sleeping time by the time when a person goes to bed. SLEEP EFFICIENCY: "Joe's sleep efficiency was low due to his medication." Related Psychology Terms SLEEP LATENCY MENTAL AGE (MA) BUST-TO-WAIST RATIO BUST-TO-WAIST RATIO BINARY VARIABLE SLEEP TALKING PHALLIC PRIDE SLEEP APNEA TYPE-TOKEN RATIO (TTR) ORGANIZATIONAL STRUCTURE Cite this page: N., Pam M.S., "SLEEP EFFICIENCY," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/sleep-efficiency/ (accessed October 20, 2021).