Staffing Methodology

Anyone else using staffing methodology to determine staff levels? seems like this just cut staff on the 20 bed subacute and hospice unit. staffing at night is 1 RN, 1LPN and one NA...too short for my liking! what are the ratios at your facilities? This is in a VA hospital CLC.
I'm confused... if your unit is full, what is the matrix?Ours changes... we are supposed to "flex" with the numbers, which means if we send people home we send nurses home. It makes sense until it doesn't. But there should NEVER just be one nurse on the floor. Even if our unit is empty (this is hilarious, it would never happen, but let's play pretend) - it would still call for two nurses to be on staff.

What happens when the only RN takes a lunch break and is relieved of all duties?

we have some sort of staffing algorithm with number of pts and acuity levels. For example, if all beds are full (31 on my unit) we get either 8 nurses and 1 aides or 7 nurses and two aides. Something like that. All I know is that there are times when we have no aides (aides as sitters count). It can be rough, but sometimes, I like having 4 pts and no aide, I mean, I'm going in there anyway...