PEAQ is a term used in the wearable technology industry to measure the quality of sleep. Although it is a specific term, there are many synonyms that can be used in its place. Some of these include sleep score, restfulness score, sleep quality index, sleep performance score, sleep efficiency score, and sleep quantity score. Each of these terms focuses on a particular aspect of sleep quality, such as the amount of deep sleep or the total amount of sleep attained. Overall, PEAQ and its synonyms are important tools in understanding the quality of one's sleep and can be useful in improving overall health and wellness.