Mattressfirm has 3 verified promo codes on CouponHub for July 2026. Active codes range from 15% off to 20% off.
Most Mattressfirm codes are percentage discounts. This puts Mattressfirm in the Home category on CouponHub, alongside other retailers in the same space.
Every code is admin-reviewed before going live and re-verified daily.
As of July 2026, the best Mattressfirm promo code is NIGHTOWL for 15% off. CouponHub has 3 active Mattressfirm codes with a 95% success rate, admin verified.
Browse the codes below and click "Copy & Go" to apply at checkout.
Night Owl Flash Sale | 15% off $449+, 20% off $699+ | Online Only | Ends Tuesday 8am | Promo Code NIGHTOWL
After Hours Flash Sale | Extra 15% off select mattresses, bedding & more | Online Only | Ends Thursday 8am | Promo Code AFTERHOURS
Prime Time Flash Sale | Extra 20% off select mattresses, bedding & more | Online Only | Ends Friday 11:59 pm | Promo Code PRIMETIME
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 July 17, 2026