Sweepstakes, what is it? A sweepstakes is a promotional contest where participants enter for a chance to win prizes, often by submitting their contact information or completing specific tasks. Typically, no purchase is necessary to enter, making it an appealing way for companies to engage customers and build brand awareness. Sweepstakes, what is it, can vary in scale, from small local contests to large national campaigns, and they often generate excitement and anticipation among participants eager to win.