Table 1.

Within-group statistical analysis (pre- vs. post-sleep onset). This table compares the small world (SW) properties within different frequency bands between pre and post sleep onset in two age groups: elderly and young. Statistical significance is represented by p-values, with values below 0.05 indicating significant differences. A dash (“-”) means no statistical differences were found (p > 0.05)

	Within statistical analysis (pre- vs. post-sleep onset)
	Elderly	Young
Delta	-	p = 0.003098
Theta	p = 0.003012	p = 0.000113
Alpha	-	-
Sigma	-	p = 0.000002
Beta	p = 0.004311	-