. Author manuscript; available in PMC: 2012 Jan 1.

Published in final edited form as: Brain Behav Immun. 2010 Jul 23;25(1):53–58. doi: 10.1016/j.bbi.2010.07.245

Table 2.

Sleep Characteristics and Proinflammatory Cytokine Activity on Both Nights (N=31)

Variables	Mean±SEM
Variables	Night 1	Night 2
Evening IL-6 Production (%)	10.21 ± 1.17	7.96 ± 1.14
Evening TNF-a Production (%)	23.99 ± 2.39	20.28 ± 1.62
Total Sleep Time (TST; minutes)	391.12. ± 11.07	414.05 ± 14.46
Time to Sleep Onset (minutes)	32.13 ± 7.45	24.32 ± 5.14
Sleep Efficiency (TST/Time in Bed × 100; %)	80.89 ± 2.22	82.94 ± 2.30
Stage 1 (% TST)	4.34 ± 0.43	5.46 ± 0.56
Stage 2 (% TST)	65.04 ± 1.51	62.22 ± 2.06
SWS (% TST)	7.05 ± 1.21	9.29 ± 1.43
REM Duration (minutes)	17.48 ± 2.29	16.22 ± 1.91
REM Density (minutes)	1.37 ± 0.14	1.59 ± 0.18
REM Latency (minutes)	64.25 ± 5.68	62.16 ± 4.61
REM (% TST)	22.63 ± 1.43	23.03 ± 1.29