Figure 1: Heart rate 2 min pre alarm to 2 min post alarm and mobilization in the day alarm and day control conditions (a) and night alarm and night control conditions (b) Note: An original figure. Data displayed as mean ± SEM. Time 0 = 15 s average from 0 s to 15 s post alarm; * significant difference (P < 0.05) between alarm and control conditions; † alarm condition significantly different (P < 0.001) compared to 15 s pre alarm; shaded area denotes average mobilization period; ---- start of saliva sampling