Founded in 1985 by Dale Carlsen, Sleep Train is an employee owned company and is the West Coast's number one mattress retailer and number four nationwide. Shortly after graduating from California State University Sacramento, Carlsen opened the first Sleep Train store on Folsom Blvd. in Sacramento, California. 32 Sleep Train coupons, including 5 Sleep Train coupon codes & 27 deals for December 2017. Make use of Sleep Train promo codes & sales in 2017 to get extra savings on top of the great offers already on sleeptrain.com.