Sears cuts up to 63% off a selection of Serta Perfect Sleeper and Sealy Posturpedic Mattresses. Plus, take an extra $50 off via coupon code "SAVE50". Shipping adds $69.99, but orders of $599 or more bag free shipping. Some exclusions apply. Coupon ends April 30. A couple of best bets, with prices after coupon: Of note, Shop Your Way Rewards members will earn a Sears credit with these purchases and may be eligible for additional credits and discounts.

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