This phone number is «Mattress Firm Clearance», located at 26670 Centerview Dr Unit 4Millsboro, DE 19966 (Delaware) | This phone number is «Mattress Firm Delmar», located at 38661 Sussex HwyDelmar, DE 19940 (Delaware) | This phone number is «Mattress Firm Dover», located at 454 N Dupont HwyDover, DE 19901 (Delaware) | This phone number is «Mattress Firm Seaford», located at 22876 Sussex HwySeaford, DE 19973 (Delaware) | This phone number is «Mattress Firm Fenwick Island», located at 901 Coastal HwyFenwick Island, DE 19944 (Delaware) |