Save 30% on a plush Sealy Posturepedic mattress at this holiday sale. $799.99 at Mattress Firm (Save $349.01) 3. ... Sleepy's By Sealy Slumber Firm Mattress.

In honor of World Sleep Day on Friday, March 13, the company will be giving some shoppers a once-in-a-lifetime opportunity to spend the night in a showroom at either the Ikea Brooklyn or Ikea ...