Select Comfort Sleep Systems designs and manufactures a line of firmness-adjustable mattresses featuring air-chamber technology. The Sleep Number bed allows you to adjust your Sleep Number setting at the touch of a button. You can adjust a higher setting for more firmness or a lower setting for softer support. Other items sold as part of their bedding collection include pillows, blankets, sheets and mattress pads. This store is located inside Great Lakes Mall, across from Bath & Body Works.