Hours Of Operations Mattress Firm Tennessee Powell 37849 Mattress Firm Hours of Operation and Location in Powell, TN 37849 4.2 - 109 votes 6708 Clinton Hwy, Powell, TN 37849 (865) 947-1528 Get Directions Mattress Firm Hours Category: Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore PowellView More Apparel Carter'sJusticeDebDieselRue 21 Recommend For You Tops Markets Carter's A Nails A+ Roofing Computer Shop Incorporated Computers Incorporated Carpet Steam Cleaning Newport Associates Glow Medical Aesthetics Frontier Communications