Sit 'n Sleep is one of the top mattress stores in Southern California, offering a wide selection of mattresses and accessories at various locations. The company's partnership with Duke University provides customers with valuable insights into their sleep needs, helping them find the perfect mattress. Customers have consistently praised the knowledgeable and helpful sales consultants, such as Lori and Stephanie, who guide them through the selection process. Many customers have expressed their satisfaction with the mattresses they purchased, reporting improved sleep quality and feeling confident in their decisions. The store's technology, including the bed match system, is also highlighted as a valuable tool in narrowing down the right mattress firmness for individual needs. While some customers have experienced a slight pressure to purchase additional accessories, the overall experience is described as positive, with customers appreciating the quality of the mattresses and bedding they have purchased over the years.