highly significantP <0.005
129.0±2.8 mmHg, P >0.28), hypertensives demonstrated highly significant increases in systolic blood pressure during wakefulness after sleep (135.0±3.3 mmHg vs. 120.5±3.0 mmHg, P <0.005; interaction group * sleep/wake: F (2,44) = 3.7, P <0.04, Figure 1 ).