Pricing is model / size based. You first select your model (the higher the number the more money its going to cost) Higher number usually means better quality also. Going to a sleep number bed location is the best way to figure out which one works better for you. After you select your model, theres usually a base price (which is queen size) Picking a smaller or larger bed size will increase or decrease the price. Good luck with your selection, its pretty fun. Great mattresses btw.
Sleep Number Beds can cost anywhere from around $450 for a Twin, Series-3 model, and all the way up to $3,000 to $4,000 for the top-end Series-10 King Sized bed. They have different models: Series-3 through 10 that increase in the height of the bed and the number of features - including a 30 night rest test! Then of course you can select the size of bed you want.
A sleep number bed can cost anywhere from $2600 to $7750 depending on the size and model. There are both good and bad reviews for sleep number beds so you should really do your research before investing in one.