Mattress Firm promo codes
3 of 33 Mattress Firm codes passed a checkout test. Each one lists what it covers and when it was last checked.
- Codes listed
- 33
- Verified
- 3
- Sitewide
- 1
- Last checked
- Jan 14, 2026
Verified codes
25% Off
Verified
25% Off Select Items at Mattress Firm
- 25% off your order
- Applies to: other
20% Off
Verified
20% Off Select Items at Mattress Firm
- 20% off your order
- Applies to: Select items
10% Off
Verified
10% Off Selected Products at Mattress Firm
- 10% off your order
- Applies to: Select items
Unverified codes
Listed as found; some may have ended25% Off
Not verified
Get 25% Off Your Purchase
20% Off
Not verified
20% Off Your Order
20% Off
Not verified
20% Off with MattressFIRM Promo Code
20% Off
Not verified
20% Off Your Purchase with MattressFIRM Coupon Code
20% Off
Not verified
Extra 20% Off Mattresses, Bedding & More
20% Off
Not verified
20% Off Selected Products at Mattress Firm
- 20% off your order
- Applies to: Select items
20% Off
Not verified
20% Off Selected Products at Mattress Firm
- 20% off your order
- Applies to: Select items
20% Off
Not verified
20% off any Mattress Firm order
20% Off
Not verified
Limited Time Flash Sale: Take an Extra 20% Off Select Mattresses
- Big Weekend Flash Sale | Extra 20% off select mattresses, bedding & more | Online Only | Ends Tuesday 9am
15% Off
Not verified
Get 15% Off Your Order
15% Off
Not verified
15% Off Select Items at Mattress Firm
- 15% off your order
- Applies to: other
15% Off
Not verified
Mattress Firm Coupon: 15% Off Your Order
15% Off
Not verified
15% Off Select Items (special Restrictions Apply) at Mattress Firm
- 15% off your order
- Applies to: Select items
- Excludes: other
15% Off
Not verified
15% Off Storewide (minimum Order $599) at Mattress Firm
- 15% off your order
- Works sitewide — no specific product required
- Applies to: storewide
11% Off
Not verified
11% Off Selected Products at Mattress Firm
- 11% off your order
- Applies to: Select items
10% Off
Not verified
Savings Galore: Take 10% off Your Order in Your Cart
10% Off
Not verified
Take An Extra 10% Off Eligible Items
- Get an extra 10% off a qualifying purchase in-store or online. A code is required for this offer. Promo code may be used only once in connection with a single sales order.
6% Off
Not verified
6% Off 1st Order with Newsletter Signup
$700 Off
Not verified
Up to $700 Off + Free Gift
$299 Off
Not verified
$299 Off or Free Gift with Select Mattresses for Personalized Comfort
$100 Off
Not verified
Extra $100 Off Select Mattresses This Weekend
$50 Off
Not verified
MattressFIRM Promo Code: $50 Off Your Purchase
$50 Off
Not verified
Exclusive: $50 Off Everything at Mattress Firm
$10 Off
Not verified
$10 off any $1350+ Mattress Firm order
Free Gift
Not verified
Enjoy a Free Gift with Select Adjustable Bases when You Buy Any Purple Royale Mattress
Free Gift
Not verified
Free Gift Select Items (special Restrictions Apply) at Mattress Firm
- Applies to: Select items
- Excludes: other
Free Gift
Not verified
Free gift with select adjustable bases with any Purple Royale mattress purchase
SALE
Not verified
$300 Instant Credit Select Tempur Pedic Adjustable Bases With Qualifying Mattres at Mattress Firm
- Applies to: Select items
SALE
Not verified
Save 15% on Orders of $699 or More
- Get 15% off a qualifying $699+ purchase with coupon code.
SALE
Not verified
Save 1% on Select Mattresses
- Get 1% Off Select Mattresses with promo code.
How to use a Mattress Firm code
Show and copy the code
Start with a verified code. The code opens in a new tab and this tab continues to Mattress Firm.
Fill your bag at Mattress Firm
Add the items the code applies to. Sale items and some brands are often excluded.
Paste it at checkout
Enter the code in the promo field before you pay. If the total does not change, try the next code.
Questions about Mattress Firm codes
Does Mattress Firm have a working promo code right now?
Yes. 3 of the 33 Mattress Firm codes listed here passed a checkout test, most recently on October 14, 2026.
What is the best Mattress Firm promo code today?
The strongest offer we have on file is “25% Off Select Items at Mattress Firm”, which is verified.
Do Mattress Firm codes work on everything?
1 of the listed codes is described as sitewide. The rest are limited to selected items, a minimum spend or new customers; each code lists its terms where they are known.
How do I use a Mattress Firm promo code?
Select “Show code” on this page and copy the code, add your items to the bag at Mattress Firm, and paste the code into the promo or discount field at checkout before you pay. The order total should update straight away; if it does not, the code does not apply to your basket.
Why did my Mattress Firm code not work?
The usual reasons are an expired code, sale items that are excluded, a minimum spend that has not been reached, or a code limited to first orders. Codes marked “Verified” were accepted at checkout on the date shown; unverified codes are listed as found and may already have ended.
Codes are collected from public sources and re-checked on a rolling schedule; retailers can end an offer at any time. InfluencerRate may earn a commission when you shop through links on this page.