Sears cuts 50% to 60% offmattresses and foundations during its Presidents' Day Sale. Plus, orders of $499 or more receive an automatic extra 10% off and bag free shipping. (Free in-store pickup is also available on most orders) That beats our mention from last week, which saw the 50% to 60% off and an extra $5 off $50 coupon, and it's the best mattress sale we've seen from Sears since September, when we last saw these discounts. Sales tax is added where applicable. Deal ends February 23.