I bought a Sleep Number bed for a few thousand that might be the least comfortable mattress I’ve ever slept on. I tried higher numbers and lower numbers. No mat

I bought a Sleep Number bed for a few thousand that might be the least comfortable mattress I’ve ever slept on. I tried higher numbers and lower numbers. No matter what, I woke up with a backache. I returned it and was out the delivery fee. (I recall them touting “free delivery and free returns” but they charged me for transporting it back.) This purchase sticks out as one that I particularly regret wasting time and money on. On the other hand, I have met people who love these mattresses, so maybe I am unusual. I got one of those mattress-in-a-box things for half the money, and I’m perfectly happy with it.