Sleep Number offers a positive shopping experience, highlighted by attentive and knowledgeable staff who provide excellent customer service. Customers have praised associates like Dawn and Keith for their dedication and thorough explanations of various mattress models. Many have expressed excitement about their new purchases, citing the helpfulness and patience of the sales team. While most experiences are favorable, some customers have raised concerns about mattress quality, specifically regarding indentations that appeared shortly after purchase. Despite this, the company provides a 10-year warranty, which offers some reassurance. Additionally, the delivery service has been noted as efficient and professional. Overall, Sleep Number is recognized for its friendly service and commitment to customer satisfaction.