Map for Mattress Megastore Map for Mattress Megastore Search | Advanced Search | New Members | Coupons and Discounts | All Categories Shopping & Specialty Retail >> MATTRESSES - RETAIL Mattress Megastore 175 SE Baseline St.Hillsboro, OR 97123 | directions (503) 747-0808 | fax: (503) 747-2762 Visit Site If your business isn't here, contact us today to get listed!