he National Mattress Discount Center is an authorized Simmons, Sealy, and Englander mattress dealer. We operate similarly to a factory outlet. We receive bulk shipments from the 5 major mattress companies consisting of various types of mattresses in the following categories:   - Close out models   - Over stocked items   - Discontinued models   - Mis-match sets   - Factory irregulars We guarantee all the mattresses we sell come with a factory or store warranty!