Table 2.

Correlations of memory performance at the post‐manipulation and delayed time points with the durations of TST, N1, N2, N3 and REM sleep, averaged across manipulation nights M1, M4, and M7

	Post‐manipulation						Delayed
	Control		SR		Fisher's Z		Control		SR		Fisher's Z
	r	P	r	P	Z	P	r	P	r	P	Z	P
TST
Total	0.05	0.83	−0.12	0.52	0.58	0.56	0.04	0.88	−0.24	0.25	0.86	0.39
HL	0.14	0.50	−0.12	0.55	10.43	0.15	−0.04	0.86	−0.28	0.19	0.75	0.45
nHL	−0.02	0.93	−0.10	0.61	0.29	0.77	0.11	0.65	−0.18	0.41	0.90	0.37
N1
Total	0.15	0.48	0.01	0.96	0.49	0.62	0.04	0.86	−0.02	0.92	0.20	0.84
HL	0.14	0.49	0.05	0.81	10.38	0.17	0.20	0.39	0.04	0.85	0.50	0.62
nHL	0.11	0.60	−0.03	0.90	0.47	0.64	−0.13	0.57	−0.08	0.72	0.16	0.87
N2
Total	−0.05	0.83	0.45	0.01	10.85	0.06	−0.04	0.88	0.62	0.00	20.34	0.02
HL	0.01	0.96	0.33	0.08	10.16	0.25	−0.00	0.99	0.56	0.01	10.95	0.05
nHL	−0.07	0.75	0.45	0.01	10.93	0.06	−0.06	0.80	0.58	0.00	20.22	0.03
N3
Total	0.02	0.91	−0.28	0.14	0.78	0.44	0.20	0.39	−0.18	0.40	10.13	0.26
HL	−0.10	0.62	−0.14	0.46	0.40	0.69	0.03	0.89	−0.18	0.40	10.16	0.25
nHL	0.09	0.68	−0.34	0.07	0.18	0.86	0.33	0.16	−0.16	0.47	0.94	0.35
REM
Total	0.02	0.94	−0.23	0.23	0.87	0.38	−0.24	0.31	−0.55	0.01	10.15	0.25
HL	0.20	0.32	−0.25	0.19	10.60	0.11	−0.17	0.47	−0.50	0.01	10.16	0.25
nHL	−0.09	0.65	−0.15	0.44	0.20	0.84	−0.24	0.31	−0.50	0.01	0.93	0.35

REM, rapid eye movement; SR, sleep restriction; HL, highlighted; nHL, non‐highlighted.

Post‐manipulation = 1 week after encoding; delayed = 6 weeks after encoding.

M1, M4, and M7 represent the first, fourth and seventh sleep opportunity manipulation nights, respectively.

Bolded values are significant at p < .05.