Drunk Incident Clean Up

Hello, 
Please do not say anything unless you are here to help. 
My sister drank way too much last night (Friday) and lost control of her bladder in the morning. She said she woke up to go pee but it was "too late".
She didn't know how to clean it up and she felt so bad so I told her I would do it since she felt sick all day. 
I tried a method but when I got to the second to last step I gave up. It said to spray the mattress with vinegar and add baking soda for a few hours then vacuum it off. 
I didn't have a few hours, so I found something else. I mixed a tablespoon of dish soap with 2 cups of water and a tablespoon of vinegar. I thought I did a good job and hanged her sheets and everything was great! 
It's maybe 2 hours later now and her mattress smells like vinegar. It's really strong and it's making her sick to her stomach. 
I just thought "Fuck this! I'm taking off the 2inch memory mattress pad and I'll clean it tomorrow!" 
but turns out that the mattress under the memory pad is also stained up and I DONT KNOW WHAT TO DO.
someone please help me, I need to clean this up....