<p>(a) Sleep profiles of males across 4 days of social interaction. (b) Sleep profiles of females across 4 days of social interaction. (c) Change in sleep bars (mean ± SEM) for males (<i>n</i> = 16 and 24, for socialized and control groups respectively) and females (<i>n</i> = 14 and 22, for socialized and control groups respectively), where white and dark bars represent sleep during day as well as nighttime. Sleep of socially interacting males is not significantly different (<i>p</i> = 0.99 for daytime and <i>p</i> = 0.50 for nighttime, Student’s <i>t</i>-test) from that of solitary controls. Sleep of socially interacting females is also not significantly different (<i>p</i> = 0.98 for daytime and <i>p</i> = 0.76 for nighttime, Student’s <i>t</i>-test) from that of solitary controls. (d, e) Sleep latency of socially interacting (d) males and (e) females is comparable (<i>p ></i> 0.05, Student’s <i>t</i>-test) to that of solitary controls. Other details are same as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0150596#pone.0150596.g001" target="_blank">Fig 1</a>.</p
