We bought the sleep number awhile back, my wife loves it, i would rather sleep on the floor. They say it takes up to six months to find "your" spot.
It does, wife loved it from the start. She was having trouble staying a sleep at night. Was getting bad enough that it was causing nightmares, doctor suggested was from a lack of sleep as we though maybe the thyroid replacement they started her on might be causing it. Was tossing and turning enough at night she almost gave me a black eye.
Took me longer to find my number, what I found is you have a number you normally sleep with then another number you have if you over did it and are especially sore before going to bed.
We spent three weeks in the UK visiting the wife's aunt's, uncle and cousins. I felt like I was 80 by time we got home. Three weeks of sleeping in strange beds, four and a half hours each in a car driving to Normandy and back, then some other traveling will about do anybody in. The 8 1/2 hour flight home was about the final nail in the coffin, back was absolutely killing me. Three nights on the sleep number and my back felt fine.
Not sure if it's the sleep number or the thyroid medicine, but the wife spends less time sleeping now. Most likely a combination of both, as she did sleep more while on vacation but it also takes almost two weeks for her to get over the jet lag, which she gets both ways.
Spend a little more and get the pillow top or memory foam with cool gel.