Luxury firm king mattress started firm and four months later is soft.
I purchased the luxury firm king. About 80 days in I started noticing my lumbar spine becoming sore and progressively tighter. I thought I needed to stretch more and so I did. Around 115 days my back seized up and I wasn’t able to move freely for a few days. I stopped sleeping in the winkbed mattress and began sleeping in a guest bedroom with a firm mattress. Within a few days my back was back to normal. By this time the trial period had passed by a few days. I asked winkbeds to honor their exchange given the circumstances and they would not. The bed started firm and is now soft after 4 months. Don’t buy from winkbeds.