Ha. I've been trying to get Air Nelson (part of Air New Zealand) to do the same for several months. I've had time off work due to stress, but the company still doesn't want to play ball. There are several people in similar positions to me - not chasing the big dollars, just wanting some income and some time with the kids.
At one point the company started to talk of 3 days per week (I fly regional, 5 days per week) for 50% salary, the extra 1/2 day covering the additional cost to the company of an extra pilot (sims, medicals, uniforms etc). Seems a bit of a no brainer, what we all want, but this dinosaur company still has the attitude that pilots need to "harden up, this is the job, take it or leave it".
As you say, it's got to be a good way to keep experienced pilots rather than paying redundancy, or having pilots leave due to a desire to actually have a life outside aviation but I think most companies can't be bothered.
Good luck.