Hours Of Operations Sleepy's the Mattress Pros Pennsylvania Downingtown 19335 Sleepy's the Mattress Pros Hours of Operation and Location in Downingtown, PA 19335 4.4 - 150 votes 889 E Lancaster Ave, Downingtown, PA 19335 (610) 873-2435 Get Directions Sleepy's the Mattress Pros Hours Category: Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore DowningtownView More Apparel Stein MartCarter'sCatherinesAmerica's Best Contacts & EyeglassesRainbow Sports LA FitnessVansSkip's Pro ShopOrvis CompanyUnited Sports Jewelry Helzberg Diamonds Recommend For You Sunbelt Rentals Banfield Pet Hospital Sleepy's Carter's El Toro Market Bottom Dollar A Nails 2000 Nails A & A Locksmith Computers Incorporated