Mattress Galleria is the premier mattress store in McAllen, TX. Mattress Galleria has name brand mattresses at the best prices in McAllen, Mission, Edinburg, and the Rio Grande Valley. Yes, Mattress Galleria does carry Serta Mattresses, the Number One Selling Mattresses in America. We carry Serta iComfort, Serta iSeries, Serta Perfect Sleeper, Corsicana and more. Our certified, professional,...