Hours Of Operations Mattress Giant Massachusetts Somerville 02143 Mattress Giant Hours of Operation and Location in Somerville, MA 02143 4.4 - 92 votes 14 Mcgrath Hwy, Ste 16, Somerville, MA 02143 (617) 623-0960 Get Directions Mattress Giant Hours Category: Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore SomervilleView More Apparel MarshallsTJ MaxxKmartSaks Fifth AvenueCarter's Sports TargetSports AuthorityNikeAdidasReebok Jewelry MarshallsSaks Fifth AvenueKay JewelersChico'sCharlotte Russe Recommend For You Warby Parker Bob's Stores Buffalo Exchange TJ Maxx Sleepy's Carter's Daphne's Eblens El Toro Market Quick Food Mart