Tempur to Flobed to Saatva, Just Cannot find the Sweet Spot

So, went back to Mattress Firm to return the Tempurpedic. They talked me into a Purple Rejuvenate Plus. Felt good in the store. Just slept on it for first time last night. Hip pain and shoulder pain. Luckily, I got the manager to put in writing that we could return or exchange this one more time. I will try it for a few days, but may end up just returning it (hopefully he was being truthful) and then go back to the Flobed to see if we can configure it somehow. We still have the Saatva Classics at home here too that are still under trial period. Not sure if I should look at anything else. Coming to my whits end here.