On some big events such as Black Friday, Valentine's Day,... Casper will constantly offer up to 50% discount or more, so all customers can purchase well on their budget without worry.

In case you enter a discount code during checkout that doesn't exist or isn't currently active, then you can see the message: “Unable to find a valid discount matching the code entered”.

To use the Casper coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the Casper checkout system or a customized checkout system that accepts the coupon.

Discount codes don't stack. If you have 56% off discount, they can't also use a "free shipping" coupon since Only one discount at a time can apply to a single order at the Casper site.

To avoid this problem, you should check out carefully Casper promo code before that promo code could be expired, some promo codes are tied to a minimum purchase, a first-time purchase, or tied to geography, and other reasons.

Usually, Coupon Stacking is not allowed at Casper. However, the store will surely give out notice if available.