Kohl's discounts The Big One Gel Memory Foam Mattress Topper, with sizes as listed below. Plus, coupon code "NEWYEAR" takes an extra 15% off. Choose in-store pickup to dodge the $8.95 shipping fee. Deal ends December 30. The sizes, with prices after "NEWYEAR":

• Twin or Twin XL for $27.19 ($53 off)
• Full for $30.59 ($59 off)
• Queen for $33.99 ($66 off)
• King or California King for $37.39 ($73 off)