Kohl's offers The Big One Essential Mattress Pad with prices starting from $11.99. Coupon code "FIREWORKS" cuts that to $10.19. Opt for in-store pickup to dodge the $8.95 shipping charge. That's a buck under our mention from three weeks ago, at least $20 off list, and the lowest price we could find. It comes in sizes twin to California king. Deal ends January 1.