Table 2.

Comparison of sleep architectures between the LFG and HFG.

	LFG	HFG
Time in bed (min)	379.7 ± 11.6	367.9 ± 19.7
Sleep period time (min)	351.3 ± 10.3	349.9 ± 17.9
Total sleep time (min)	344.8 ± 9.9	332.3 ± 20.2
Sleep efficiency (%)	98.2 ± 0.2	94.9 ± 2.6
Sleep latency (min)	13.4 ± 2.7	11.1 ± 2.3
STAGE TIME (MIN)
WASO	3.5 ± 0.8	5.2 ± 1.2
REM	78.5 ± 5.6	76.7 ± 9.1
StageN1-2	181.4 ± 8.0	187.3 ± 16.7
StageN3	84.9 ± 4.6	68.3 ± 6.7#
StageN3 in sleep cycle 1	36.2 ± 2.0	25.5 ± 3.4*
REM latency (min)	72.6 ± 6.5	47.8 ± 7.5*

LFG, low fatigue group; HFG, high fatigue group. Data are presented as mean values ± standard error of the mean (SEM).

^#Marginal difference from LFG (p = 0.0505);

^*Significant difference from LFG (p < 0.05).