Like new queen size sleep number mattress. We are looking for a new home for our sleep number mattress. No box spring. We need to get an adjustable bed for my wife. It is an older model with no cooling or heating. It was covered with a mattress cover so it is like new. It has not been used for the last 4 years. My wife has been sleeping in a recliner and I have been sleeping on the couch. It was used for about 5 years but still works great.