Suggest an Edit Name* Categories* Clothing store Convenience store Department store Electronics store Furniture store Hardware store Home goods store Jewelry store Liquor store Pet store Shopping mall Supermarket Clothing store Convenience store Department store Electronics store Furniture store Hardware store Home goods store Jewelry store Liquor store Pet store Shopping mall Supermarket Delete Add category State* Locality* ZIP* Street address* Phone* Website Opening hours Sunday: 12:00 pm — 06:00 pm Monday: 10:00 am — 08:00 pm Tuesday: 10:00 am — 08:00 pm Wednesday: 10:00 am — 08:00 pm Thursday: 10:00 am — 08:00 pm Friday: 10:00 am — 08:00 pm Saturday: 10:00 am — 06:00 pm Company description Your comments (not for publishing) * — Required information Mattress Firm ← View details 2111 State Highway K, O'Fallon, MO 63366 +1 636-978-0352