This won’t surprise anyone … but a new survey found that most of us don’t sleep well. In fact, the survey revealed that the average American gets a lousy night’s sleep about three times a week. Also no surprise, 58% of those surveyed said their work performance suffers if they don’t get a good night’s sleep. Not only that, but not sleeping well leads to them feeling irritated (41%), unmotivated (38%), or unhappy (36%).