Fig. 4
From: Sleep Regularity and Predictors of Sleep Efficiency and Sleep Duration in Elite Team Sport Athletes
Individual sleep profiles for four athletes, that selected to reflect the individual nature of the relationships showing a (1) irregular sleeper with good sleep efficiency; (2) irregular sleeper with poor sleep efficiency; (3) regular sleeper with good sleep efficiency; (4) regular sleeper with poor sleep efficiency. Each bar reflects total sleep time with the colour highlighting sleep efficiency across each day of the week