Worst mattress ever!

This is the worst mattress ever for an exuberant amount of money. I’ve had cheaper mattresses that were way better than this. I trusted the brand because it was made by mattress firm but I was wrong. Only a couple months after I got this bed it started to sink in the middle. It creaks as if I’ve had it for 15 years and I’ve only had it for 2. I’ve never gotten a goodnight sleep in this mattress and since I’ve had it I’ve only had back problems. Because it sags my back is not supported and I can feel it straining and twisted. I can’t wait to get a new mattress tomorrow!