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. 2024 Feb 26;14:4669. doi: 10.1038/s41598-024-53839-x

Table 1.

Mattress effects on nocturnal means, SD, min and max values of the LM, the HM and their differences (HM-LM) (see Figs. 1, 2).

LM HM HM-LM
N Mean SD Min Max Mean SD Min Max Mean SD Min Max
HR 69 61.48 8.77 42.99 84.16 59.12 8.49 40.99 78.77 − 2.36 3.62 − 11.96 7.35
MAT 71 33.43 0.85 30.29 35.13 30.63 0.95 28.00 33.24 − 2.80 1.05 − 5.08 − 0.10
PBT 71 34.98 0.54 34.42 36.09 34.54 0.62 32.60 35.51 − 0.44 0.61 − 1.84 0.72
CBT 71 36.56 0.19 36.18 37.20 36.41 0.24 35.94 37.45  − 0.15 0.23 − 0.75 0.64
CBT-PBT 70 1.58 0.52 0.62 2.76 1.87 0.58 0.97 3.64 0.29 0.55 − 0.92 1.58
W + N1 72 2.33 1.26 0.27 5.48 2.36 1.25 0.18 5.17 0.03 1.07 − 2.93 1.76
N2 72 4.30 0.86 2.44 6.32 4.18 0.82 0.93 5.87 -0.21 0.76 − 1.94 1.64
N3 72 1.68 0.77 0.39 4.82 1.85 0.77 0.00 4.63 0.17 0.48 − 1.07 1.49
REM 72 1.62 0.60 0.10 2.97 1.56 0.56 0.30 2.64 - 0.06 0.57 − 1.31 1.22

HR (bpm) heart rate, MAT (°C) mattress surface temperature, PBT (°C) proximal back skin temperature, CBT (°C) core body temperature, CBT-PBT (°C) core body temperature-proximal back skin temperature-gradient, W + N1 (min/10 min) wake + sleep stage N1, N2 (min/10 min), sleep stage N2, N3 (min/10 min), slow wave sleep, REM (min/10 min), rapid eye movement sleep (for statistics including effect sizes see Suppl. Table 1a).