Here's how to use Promo Codes when shopping at Tempur-pedic: Sign in to your tempurpedic.com account, if you don't already have one, you will need to create a new Tempur-pedic account. Then, add the selected items to the shopping cart. You will then be taken to the payment interface, where you can enter the Coupons you obtained at e-coupon-code.com in the [Use Coupon Codes] box. Please note that each Tempur-pedic Coupon Codes has its own rules of use, which can be used if your order is eligible.