Sleeping in a Ditch Head Downhill

I have been sleeping on a beauty rest Avery since Fall 2018. The first set I had failed completely. The sides would sink when sat on and you could slide right off the bed. The bed formed a sink whole where you would sleep. Lower back and hips would be painful in the morning. The kings ridge formed with in two days of sleeping on it. The problems went on and on. I have had a new replacement for about a month now. It is having the same issues. Mattress sinks in the center when you sleep. The ridge that has formed in the middle keeps you from being able to roll over. The sides are collapsing again. When you lay down you will notice your head is way lower than your feet. I am a healthy adult in good shape. I have not a good night sleep since purchasing this expensive bed. My hips hurt every morning. My lower back also. I wake with tingling in my hands often. My knees hurt when I wake because the bed throws my hips out of alignment. I have experienced Vertigo because my head sinks so much lower than the rest of my Body. Mattress Firm who sol me this bed does not seem to care once they have made the sale. They tell you it is your concern. They are just a greedy company in the business to sell beds. If you want to wake up everyday in Pain this is the expensive bed for you. I am sure there is a sales person at Mattress Firm who will be happy to sell it to you so they get their commission. Just know when the bed fails as it has twice for me in less than a year. They won’t help you. They already have your money from the sale