Mattress Guys opened its first McKinney location on May 26 at 1321 N. Tennessee St., Ste. 104. The locally owned mattress store sells a variety of mattresses including Simmons Beautyrest and King Koil. Mattress Guys offers king, queen, full and twin sized mattresses. 214-856-4480. www.facebook.com/mattressguysmckinney