Boiling pillows? What about cushions?

Hello all,
I've read some of the threads about boiling pillows, but what about boiling cushions, like the one for the Mirage Quattro?
I have some older ones that I've been re-using, and it seems that after a while they start to leak much more easily.
I'd like to save some $$ by re-using them longer.

Has anyone had good results with boiling in distilled water w/some baking soda?

TIA...

Julie

Boiling mask cushions is exactly the same as boiling pillows. I have been using the same cushion for my Mirage Activa for over three months and I have boiled it twice. I heat some water to boiling in the microwave, add baking soda, and drop the cushion in. I leave it in the water until it is cool enough to put my hand in. It seems to work well.