sleepy's they won't honor their warranty northampton Nationwide

 On September 16th 2014 I bought a serta cool elegance lxp queen size mattress for $2067.00 plus a fabratec mattress protector for $100.00 totaling $2167.00 . Was told to keep protecter on and I would have a 25 yr warranty. A week later they set up my bed put protector on. In march of 2015 mattress had lost alot of firmness. To the point my knees would hurt if I slept on my back. I called sleep's and they sent me a home inspection kit witch consisted of a string, 2 washers and a paper ruler. The directions said strip the bed lay string across and measure indentation. When I stripped the bed there was a sweat ring. Sleepy's says this voids my warranty. I say but I had the protector on. They tell me to call fabratec. so I call fabratec place a claim with them. They tell me I'll get some paperwork in the mail within 14 days. 21 days later I call them back to ask about the paperwork that never showed. They tell me there is no record of my claim and give me the same story of two weeks I'll get paperwork in the mail. 6 days later I get a letter from them saying I failed to launder the protector monthly so they won't honor the warranty. I was never given care intructions. I was told "keep the protector on". The protector is pretty much a plastic fitted sheet that makes you sweat so now im out 2k and I can't sleep on the mattress. And neither company will honor their warranty.