Table 4.

Statistical analysis of the recovery day for 3 drivers used in Figure 3^a

	LP										DP
Driver	Nonparametric/parametric test				Post hoc comparisons						Nonparametric/parametric test			Post hoc comparisons
D3-D1 21°C	Test	DFn, DFd	F	p		n1	n2	Mean difference	p		Test	F	p	Mean difference	p
R64H04
△ Total sleep	ANOVA	2,55	5.451	0.0069	1 vs 2	15	22	−121.1	0.0035	**	ANOVA	2.027	0.1415	−29.82	0.6373	NS
					1 vs 3	15	21	−85.58	0.0464	*				−75.3	0.0959	NS
△ No. of episodes	ANOVA	2,55	0.0772	0.9258	1 vs 2	15	22	−0.5091	0.9676	NS	ANOVA	0.098	0.9072	−1.006	0.9253	NS
					1 vs 3	15	21	−0.981	0.8884	NS				−1.4	0.8643	NS
△ Maximum episode length	K-W	3,58	8.367	0.0152	1 vs 2	15	22	−16.35	0.0077	**	K-W	2.913	0.2331	−9.277	0.2017	NS
					1 vs 3	15	21	−9.386	0.2003	NS				−7.681	0.3569	NS
△ P(doze)	ANOVA	2,56	3.591	0.0341	1 vs 2	15	23	−0.02696	0.7393	NS	K-W	1.256	0.2927	−0.07932	0.2415	NS
					1 vs 3	15	21	0.04529	0.2829	NS				−0.05507	0.5749	NS
△ P(wake)	ANOVA	2,56	5.536	0.0064	1 vs 2	15	23	0.1066	0.016	*	K-W	3.68	0.1588	0.5768	>0.9999	NS
					1 vs 3	15	21	0.124	0.0054	**				9.295	0.2188	NS
R47F07
△ Total sleep	ANOVA	2,92	7.799	0.0007	1 vs 2	24	39	−107.8	0.001	**	ANOVA	12.99	<0.0001	−54.83	0.0075	**
					1 vs 3	24	32	−25.5	0.6125	NS				30.61	0.1952	NS
△ No. of episodes	K-W	3,95	9.574	0.0083	1 vs 2	24	39	12.56	0.1576	NS	K-W	2.283	0.3194	−10.53	0.2796	NS
					1 vs 3	24	32	−7.448	0.633	NS				−4.609	>0.9999	NS
△ Maximum episode length	K-W	3,95	13.04	0.0015	1 vs 2	24	39	−20.25	0.0093	**	K-W	0.042	0.9793	−0.00641	>0.9999	NS
					1 vs 3	24	32	0.8698	>0.9999	NS				−1.229	>0.9999	NS
△ P(doze)	K-W	3,95	3.265	0.1954	1 vs 2	32	31	12.13	0.1615	NS	K-W	5.942	0.0513	−5.134	0.9198	NS
					1 vs 3	32	32	8.75	0.4085	NS				11.38	0.1977	NS
△ P(wake)	ANOVA	2,92	2.319	0.1041	1 vs 2	32	31	0.07036	0.1217	NS	K-W	9.721	0.0077	6.953	0.6339	NS
					1 vs 3	32	32	−0.00178	0.9983	NS				−14.25	0.0774	NS
R84H09
△ Total sleep	K-W	3,90	0.3417	0.8429	1 vs 2	32	30	−2.221	>0.9999	NS	K-W	6.194	0.0452	10.71	0.2137	NS
					1 vs 3	32	28	1.777	>0.9999	NS				−6.096	0.7344	NS
△ No. of episodes	K-W	3,90	0.934	0.6269	1 vs 2	32	30	−0.725	>0.9999	NS	K-W	1.779	0.4108	1.976	>0.9999	NS
					1 vs 3	32	28	−6.054	0.7396	NS				8.681	0.3972	NS
△ Maximum episode length	K-W	3,90	1.147	0.5634	1 vs 2	32	30	−2.349	>0.9999	NS	K-W	1.838	0.399	1.258	>0.9999	NS
					1 vs 3	32	28	4.877	0.9412	NS				−7.375	0.5506	NS
△ P(doze)	K-W	3,88	8.562	0.0138	1 vs 2	31	30	12.25	0.1223	NS	K-W	2.214	0.3305	−1.055	>0.9999	NS
					1 vs 3	31	27	−7.252	0.5617	NS				8.217	0.4435	NS
△ P(wake)	K-W	3,88	0.9652	0.6172	1 vs 2	31	30	6.324	0.6676	NS	K-W	3.736	0.1545	−9.147	0.3242	NS
					1 vs 3	31	27	2.068	>0.9999	NS				3.382	>0.9999	NS

^aChange in sleep parameters, total sleep, number of episodes, maximum episode length, P(doze), and P(wake) on the recovery day (21°C) were analyzed for day (LP) and night (DP) separately. One-way ANOVA followed by Bonferroni test or Kruskal–Wallis (K-W) followed by Dunn's test was applied based on distribution of the datasets.

*p < 0.05.

**p < 0.01.