Sit 'n Sleep is a leading mattress store in Southern California, known for its wide selection of mattresses and accessories across multiple locations. Customers frequently praise the excellent customer service, particularly highlighting an employee named Javier, who is described as knowledgeable, patient, and attentive. He takes the time to understand customer needs, providing informative guidance that helps shoppers make confident decisions. Many reviews commend the welcoming atmosphere of the store, making visits enjoyable and stress-free. Overall, Sit 'n Sleep offers a great shopping experience, with satisfied customers recommending the store for its quality products and helpful staff.