That’s cost effective for the hospital but simply not viable longer term. To be clear waking someone up every 2.5 - 3 hours is very different from waking them up every 2.5 hours and another 2+ random times during the night.
As long as somone is only in the ICU for 72 hours it’s not a huge deal, but start talking a week and it’s a significant issue.
If the hospital staff had sent her home, she would not be woken every two hours. The medical staff were fine with that.
It would have been perfectly reasonable for them to let her sleep; it would have been no more risk than they were advocating for.
Clearly it was optional.
Unless there was some regulatory, legal, or hospital requirement that she receive a certain standard of care. They may have been fine with her sleeping through the night at home, but if she's in the hospital they need to take care of her.
It would not be an easy sell in a courtroom to explain that while you checked everyone except her every 3 hours, you let her sleep through the night and there was an issue that cost her life.
Not that the physicians and nurses should have been taking that into account but the folks crafting the regulations or hospital policy very well may have.
What you've just said supports the article's argument that hospitals are designed to prevent people from sleeping.