As we sat down across the two nurses (actually both male if anyone is keeping notes) and the rep gave them the hand-outs and started to explain the software and operation to them.
After about five minutes into it both the nurses had closed their eyes and seemed to drift away, for a while they momentarily woke up when the rep asked them to turn the page; they turned the page and then again drifted away.
Ten minutes into the presentation they were harder to reach and no longer turned the page when instructed to, at one point one of them dropped the hand-out, momentarily woke up looking confused, but the rep handed him the hand-out, flipped to the correct page and the nurse again closed his eyes and went away. The rep soldiered on, didn't budge and kept talking and explaining to his semi-sleeping audience, I admit that he wasn't doing it particularly passionate, but the topic was quite sleep-inducing.
...Japan must have the highest sleep deprived population per capita in the world...