The interval between systole and diastole

Last night I dreamed I was standing in a cath lab, but the monitors weren't beeping — they were humming a single note. The guidewire was moving through the artery like a slow-motion snake, and I could feel the patient's blood temperature change as it passed. I woke up with my hand in the same position as if I were still holding the wire. That kind of attention doesn't shut off, does it.