Sometime back someone posted details on how to wash a mattress.

Not sure how to wash a mattress, but I sprinkle mine with baking soda about 3-4 times per year. Let t sit for most of the day, then vacuum it off. It helps to freshen the mattress and give it a clean scent.

Hi Sharon, Here's a link that may help: https://housewifehowtos.com/clean/how-to-clean-a-mattress/

Good luck!

I liberally sprinkle mine with baking soda. leave it on for a couple hours. Then vacuum. Baking soda will absorb much of the body odors and leave it smelling fresh. to remove any stains, I use carpet cleaner on then with excellent results.

http://www.hometalk.com/diy/clean/furniture/how-to-clean-a-mattress-2600394

I have removed blood with peroxide and micro fiber cloths. I have even poured it a little. You just have to be vigorous and be able to let it dry. You cannot even tell where the spot was.