Mattress Firm Knox Park is located in Dallas TX, Zip Code: 75205 on the street of 3003 Knox St Ste 103. If you want to ask something about the furniture, mattresses, catalog, pricing, hours and directions, the Phone number is 214-520-9993. The coordinates that you can use in navigation applications to find Mattress Firm Knox Park quickly are 32.6629 -96.88604 USA