Sleep-wakefulness, EEG delta power in SWS and wake episodes (2 hr bins) in TNF-α antibody injection mice.

<p>Comparison of sleep parameters in TNF-α antibody injection mice at baseline (solid line represents baseline values in the respective group), day 1, day 7 and day 15 of SF (dashed line represents SF values in the respective group). Shaded area represent dark period. The black line indicates SF period (7.00 am to 7.00 pm). SF, sleep fragmentation. p<0.05. * = comparison between baseline and SF during respective post-fragmented days.