As of June 2026, the best Mattressfirm promo code is AFTERHOURS for 15% off. CouponHub has 2 active Mattressfirm codes with a 100% success rate based on 100 user verifications.
Browse the codes below and click "Copy & Go" to apply at checkout.
After Hours Flash Sale | Extra 15% off select mattresses, bedding & more | Online Only | Ends Thursday 8am | Promo Code AFTERHOURS
Night Owl Flash Sale | 15% off $449+, 20% off $699+ | Online Only | Ends Tuesday 8am | Promo Code NIGHTOWL
Combine a Mattressfirm promo code with cashback portals and credit card rewards for maximum savings. Enter your order total to see the full stack.
Cashback rates are approximate and vary by store. Credit card rewards depend on your card issuer and category. Coupon and cashback typically stack, but one promo code per order at most stores.
Mattressfirm is an online retailer. At CouponHub, we track and verify all available Mattressfirm promo codes and discount offers. Our team reviews every code before it goes live, and our community votes on whether codes worked at checkout - giving you confidence that the codes listed here are current and functional.
To get the best deal at Mattressfirm, check this page before every purchase. New codes are added daily from our community of deal hunters. Sign up for Mattressfirm's email newsletter for exclusive subscriber-only discounts and combine those with the promo codes listed above for maximum savings.
CouponHub Editorial Team
Verified savings experts · Updated June 2, 2026