Most PALS better preserve remaining motor function and maximize mental acuity with a regimen that does not include benzos or other CNS depressants. When the indication is "air hunger," that is about BiPAP settings, until the very end.
When it is ongoing depression/anxiety, there are lots of agents that provide a consistent "coverage level" with once-daily dosing. Medical conditions, other drugs used, etc. and the nature of the mood issues can inform where to start.
When it's situational anxiety, often the situation itself (like not getting overheated or stressed) can be adjusted. A simple fan all night is both white noise and air flow, for PALS and non-PALS alike. Some PALS have their humidifier heat maxed out in all seasons...easy to adjust.
When it's musculoskeletal pain, benzos were never intended for that and often the solution is better positioning/support in beds, wheelchairs, recliners, etc., massage, passive ROM exercises, etc. That often plays into falling/staying asleep as well. In cooler weather, especially, I continue to plug (pun intended) low voltage heated mattress pads under the mattress overlay as a drug-free muscle relaxant.
As context, Kim has other chronic conditions that cause pain, such as a connective tissue disorder. So her need for muscle relaxants will be different.