¹Offer valid 7/17/24 – 8/13/24. Savings applied to our low price. Savings vary by product and model (max savings up to 60% off).  Offer valid only on models indicated, selection varies by store and while supplies last. Offer not valid on previous purchases; other exclusions may apply. Visit a store or see mattressfirm.com for complete details.

³Offer valid 7/17/24–8/13/24. Receive a free Sleepy's Basic adjustable base (up to a $499.99 value) with select mattress purchases (free queen adjustable base with minimum $499 purchase, or free king adjustable base with minimum $599 purchase). Adjustable Base value is based on a comparable item sold by a nationwide online seller. Free adjustable base offer valid on same-size mattress purchased. Split king or split California King base purchases consist of 2 bases. For split king or split California King purchases, each customer will receive one free adjustable base with promotion, with second base at regular price. Free adjustable base offer valid to complete mattress set, has no cash value, and cannot be used as credit. Offer not valid on previous purchases, floor models, Purple® National Collections, Serta® iComfort®, Tempur-Pedic®, Stearns & Foster®, Sealy® Hybrid,  Nectar, Tuft & Needle, or Lull. Other exclusions may apply. Adjustable bases not eligible for returns; price of adjustable base (up to $499.99) will be deducted from refund if mattress is returned. Adjustable base may be pictured with furniture; bed frame and headboard not included with offer. Offer valid while supplies last. Visit a store or see mattressfirm.com for complete details.

⁴Receive a $300 Instant Gift with purchase of select mattresses in store or online. Must call or chat to redeem online offer. Purchase select Tempur-Pedic mattresses and receive a $300 Instant Gift or purchase Stearns & Foster Estate, Lux Estate, Lux Hybrid & Reserve mattresses or Sealy Hybrid mattresses and receive a $200 Instant Gift. Select your Instant Gift from your choice of sleep accessories. Sleep accessories must be added to the same transaction as the qualifying mattress purchase. Offer has no cash value and value cannot be carried over any value not used at time of transaction will be surrendered. Offer not valid on previous purchases, floor models, clearance items or final markdown. Other exclusions may apply. Value of accessories received (up to $300) will be deducted from refund if mattress is returned. Offer valid while supplies last at participating locations. Visit a store, call (877) 316-1269 or chat online for complete details.

⁵Offer valid 7/17/24 – 8/12/24. Savings valid only on select Tempur-Pedic Clearance beds indicated (max savings up to 30% off). Savings vary by product and model. Selection varies by store and while supplies last. Offer not valid on previous purchases; other exclusions may apply. Visit a store or see mattressfirm.com for complete details.

⁸Sale valid 7/17/24-7/30/24. Save an extra $100 on select Sleepy’s by Sealy mattresses with promo code: SCORE100. Save an extra $200 on select Sleepy’s Hybrid and Sleepy’s by Sealy mattresses with promo code: SCORE200. Offer valid only on models indicated. May be combined with free adjustable base offer but cannot be combined with any other promo codes. Not valid on previous purchases. Visit a store or see mattressfirm.com for complete details.

⁹Offer valid online only 8PM to 8AM. Extra savings apply to online exclusive models only. Savings applied to listed sale prices. Offer not valid on previous purchases, final markdowns, Purple®, Serta® iComfort®, Tempur-Pedic®, Stearns & Foster®, Sealy® Hybrid, Beautyrest Black®, Nectar, Tuft & Needle, Malouf, Awara, Lull, and adjustable bases. Cannot be used in combination with any other coupon offer nor Free Adjustable Base offer. Other exclusions may apply. See mattressfirm.com for complete details.

¹⁰Offer valid 7/17/24–8/13/24. Save up to $1000 on select mattresses. Savings applied to our low price. Offer valid only on models indicated and while supplies last. Not valid on previous purchases. Visit a store or see mattressfirm.com for complete details.

¹²Offer valid 7/17/24 – 8/13/24. Savings applied to our low price. Savings vary by product and model (max savings up to 60% off).  Offer valid only on models indicated, selection varies by store and while supplies last. Offer not valid on previous purchases; other exclusions may apply. Visit a store or see mattressfirm.com for complete details.

¹³Offer valid 7/17/24-8/13/24. Save $50 when you purchase 2 pillows, 1 mattress protector and 1 sheet set from Sleepy’s Basics. Save $100 when you purchase 2 pillows, 1 mattress protector and 1 sheet set from Sleepy’s Signature. Save $150 when you purchase 2 pillows, 1 mattress protector and 1 sheet set from Sleepy’s Deluxe. Size availability varies by collection. Items have no cash value and are not eligible for returns. Offer not valid on previous purchases or clearance items. Cannot be combined with other accessory offers nor any other gift with purchase bedding offers. Offer valid while supplies last. Visit a store or go to mattressfirm.com for complete details.

¹⁴Offer valid 6/12/24-7/16/24. Save $50 when you purchase 2 pillows, 1 mattress protector and 1 sheet set from Sleepys Basics. Save $100 when you purchase 2 pillows, 1 mattress protector and 1 sheet set from Sleepys Signature. Save $150 when you purchase 2 pillows, 1 mattress protector and 1 sheet set from Sleepys Deluxe. Size availability varies by collection. Items have no cash value and are not eligible for returns. Offer not valid on previous purchases or clearance items. Cannot be combined with other accessory offers nor any other gift with purchase bedding offers. Offer valid while supplies last. Visit a store or go to mattressfirm.com for complete details.

¹⁵Sale valid 7/17/24-8/13/24. Max savings of $800 on select Serta iSeries mattresses. Max savings includes manufacturer instant rebate of $200 off listed price with promo code: SCORE200. Max savings varies by model and size. Selection varies by store. Free adjustable base value is based on a comparable item sold by a nationwide online seller. Free adjustable base offer valid on same-size mattress purchased. Split king or split California King base purchases consist of 2 bases. For split king or split California King purchases, each customer will receive one free adjustable base with promotion, with second base at regular price. Free adjustable base offer valid to complete mattress set, has no cash value, and cannot be used as credit. Offer not valid on previous purchases, floor models, clearance items, or final markdowns. Adjustable bases not eligible for returns; price of adjustable base (up to $499.99) will be deducted from refund if mattress is returned. Adjustable base may be pictured with furniture; bed frame and headboard not included with offer. Offer valid while supplies last.  Visit a store or see mattressfirm.com for complete details.

^⬦Offer valid 7/17/24-8/12/24. Save $300 on the Purple Restore Cool Touch line. Save $300 on the Purple RestorePremier™ Cool Touch mattress, Purple RestorePlus™ Cool Touch mattress and Purple Restore™ Cool Touch mattress. Receive a free Sleepy's® Basic adjustable base (up to a $499.99 value) with any Purple Restore™ Cool Touch mattress purchase. Adjustable Base value is based on a comparable item sold by a nationwide online seller. Free adjustable base offer valid on same-size mattress purchased. Split king or split California King base purchases consist of 2 bases. For split king or split California King purchases, each customer will receive one free adjustable base with promotion, with second base at regular price. Free adjustable base offer valid to complete mattress set, has no cash value, and cannot be used as credit. Offer not valid on previous purchases or floor models. Adjustable bases not eligible for returns; price of adjustable base (up to $499.99) will be deducted from refund if mattress is returned. Adjustable base may be pictured with furniture; bed frame and headboard not included with offer. Offer valid while supplies last. Offer cannot be combined with other offers. Offer not valid on previous purchases. Visit a store or see mattressfirm.com for details.

Offer not valid on prior purchases. Valid while supplies last only. Visit a store, call (877) 316 - 1269 or chat online for complete details.

PayPal Store Cash Program: Discount will be applied during paypal checkout and to amount prior to finalization of sale and application of taxes and delivery charges. May not be combined with any other discount, coupon or special offer or used on previous purchases. Offer not valid on previous purchases, floor models, clearance items, final markdown, Purple, tulo, iComfort, Tempur-Pedic, Stearns & Foster or Sealy Hybrid. Other exclusions may apply. Expires 7 days from date of purchase. Store cash valid for one-time redemption; unused store cash forfeited.

¹⁴Military, Education, Medical and First Responder discount: Get an extra 20% off select purchases or an extra 10% off Purple with offer code. Savings applied to listed sale prices. Offer code may be used only once, in connection with a single sales order. Offer not valid on previous purchases, floor models, clearance items, final markdowns, Serta® iComfort, Tempur-Pedic®, Stearns & Foster®, Sealy Hybrid, Beautyrest® Black, Nectar, Tuft & Needle, Brentwood Home, and adjustable bases. Other exclusions may apply. Visit a store or see mattressfirm.com for complete details.

^{^}You may exchange your mattress once, with a return delivery fee of $99.99* and a restocking fee of $99, and receive, as credit toward the purchase price of a different mattress, the purchase price of your original mattress. If you still aren’t absolutely satisfied with your new mattress, you can return it with a return delivery fee of $99.99* and an additional restocking fee of $99.99 and receive, as a refund, the purchase price of your new mattress. Your refunded purchase price will be further reduced by any state use taxes that we are required to apply. Mattress Firm is unable to exchange or refund stained, unsanitary or damaged mattresses under the 120 Night Sleep Trial®. That’s why we highly recommend using a waterproof mattress protector to help keep your new mattress clean. In addition, we recommend keeping all original tags on your mattress. If you remove the law tag from the mattress or foundation, it will void the 120 Night Sleep Trial®.

Extra Firm King Sized Mattresses

Extra Firm King Sized Mattresses