In addition to some amazing Black Friday / Cyber Monday discounts that are sure to wake you up, Sleep City is giving away a comfy mattress to one lucky winner. Enter right now for a chance to win your choice from among several models and sizes of luxurious Simmons Beautyrest Black mattresses, so that you can get something you probably didn't get last week on Thanksgiving or Black Friday - a good night's sleep! According to Sleep City, "Simmons Beautyrest models are known for their durability and comfort.