Furniture › Bedroom Furniture › Mattresses & Boxsprings › Twin Extra Long › firm mattress

Twin XL Firm 14" Innerspring Mattress - Sealy Posturepedic Mill Park Faux Euro Top | 80 H x 38 W 14 D in Wayfair 52952931

This Faux Euro Top mattress features the trusted motion-reducing encased coils and targeted memory foam support of similar Posturepedic Spring mattresses with a firm feel. A reinforced edge improves durability, while cover treatments help to keep you... more

Adora Firm Tight Top Mattress - Twin Extra Long - Ballard Designs

If you need firm support, but yearn for the contouring flexibility of foam, our Adora Firm Tight Top Mattress could be the mattress of your dreams. Each layer is designed to provide the next level of sleep-inducing comfort, all supported by a pocketed... more

Mattress Foundation - Low Profile, Twin Extra Long - Ballard Designs

Take your nighttime comfort to the next dreamy level with our luxurious and supportive Mattress Foundations. Box edge frames are hand built by Amish craftsmen from solid spruce wood in three profiles, Slim, Low and High, to custom fit your bed and... more

Mattress Foundation - High Profile, Twin Extra Long - Ballard Designs

Take your nighttime comfort to the next dreamy level with our luxurious and supportive Mattress Foundations. Box edge frames are hand built by Amish craftsmen from solid spruce wood in three profiles, Slim, Low and High, to custom fit your bed and... more

Twin XL Firm 10" Hybrid Mattress - Sealy Cool & Clean Medium | 39 W x 10 D in Wayfair F03-00181-TX0

Cool, clean, comfortable, and convenient. The cool and clean 10" medium firm hybrid mattress brings all the comfort and trusted quality of a Sealy mattress, turned up a notch with a cool & clean cover and mattress-in-a-box convenience. Cool-touch plush... more

Twin XL Firm 11" Innerspring Mattress - Sealy Posturepedic Mill Park Ultra Tight Top & Box Spring Set | 80 H x 38 W 11 D in Wayfair 42952431

This mattress features the trusted motion-reducing encased coils and targeted memory foam support of similar Posturepedic Spring mattresses with an ultra firm feel. A reinforced edge improves durability, while cover treatments help to keep you cool,... more

Twin XL Firm 10.5" Innerspring Mattress - Serta Clarks Hill | 39 W x 10.5 D in Wayfair 500705991-1020

The Serta Clarks Hill Firm 10.5" Innerspring Mattress provides a supportive mattress that delivers the trusted comfort of Serta. Serta pillow-soft foam gently contours the body to provide enhanced cushioning comfort. Our 805 individually wrapped coil... more

Twin XL Firm 12" Memory Foam Mattress - Builddecor | 80 H x 38 W 12 D in Wayfair miumiuB05165458

This mattress can help alleviate spine discomfort, promote sleep well and make you feel good. Feels so healthy when waking up. it is a product you should choose. Mattress Size: Extra Long Twin | Twin XL Firm 12" Memory Foam Mattress - Builddecor | 80 H... more

Twin XL Firm 13" Mattress - Brooklyn Bedding Plank Luxe Two Sided Firm/Ultra w/ Cooling Cover | 80 H x 38 W 13 D in Wayfair BBPLHYCT33XL

The flippable Plank Luxe is designed to be the firmest mattress on the market—pairing all of the benefits of the original Plank with the additional responsiveness and pressure point relief of individually encased coils. Put simply, the construction of... more

Twin XL Firm 14" Hybrid Mattress - Serta Perfect Sleeper Radiant Rest | 79.5 H x 39 W 14 D in Wayfair 500107661-1020

The all-new 2023 Perfect Sleeper collection featuring a coil density system, this supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band—with upgrades available with more cooling layers and support. Mattress Size:... more

Twin XL Firm 14.5" Mattress - Serta Perfect Sleeper Oasis Sleep Pillow Top | 79.5 H x 39 W 14.5 D in Wayfair 500103173-1020

The all-new 2023 Perfect Sleeper collection featuring a coil density system, this supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band—with upgrades available with more cooling layers and support. Mattress Size:... more

Twin XL Firm 10" Memory Foam Mattress - Ergo-Pedic Coppercloud Original Infused Medium-Firm in Brown | 80 H x 38 W 10 D Wayfair F10CPRT80

Transform your sleep with the CopperCloud Original Mattress. Infused with copper, this mattress actively pulls excess heat away from your body, resulting in a cooler and more comfortable sleep. Copper is also a natural anti-inflammatory that helps... more

Twin XL Firm 13.5" Hybrid Mattress - Kingsdown Passions Merridale | 80 H x 38 W 13.5 D in Wayfair FG-36003-TT1-TL

Like all Kingsdown handmade mattresses, Kingsdown passions Merridale is designed with a passion for quality sleep. At the heart of the Kingsdown line, passions incorporates advanced features like tri-zoned coil support and foam infusions for enhanced... more

Twin XL Firm 14" Gel/Foam Mattress - ComforPedic Loft from the Beautyrest Gel Memory Foam | 80 H x 38 W 14 D in Wayfair 35602-04791-WF

Elevate your sleep experience with the ComforPedic Loft from the Beautyrest gel memory foam mattress. This upscale gel memory foam mattress provides three layers of support for a luxuriously comfortable sleeping experience. The gel memory foam mattress... more

Twin XL Firm 12" Gel/Foam Mattress - Blissful Nights Two-Sided Medium & Gel Memory Foam | 80 H x 38 W 12 D in Wayfair 12SWITCH-TL

This 2-in-1 mattress allows you to switch the comfort and feel by simply flipping it. Each sleep surface of the mattress was thoughtfully designed with gel memory foam to dissipate heat and allow air to travel throughout for a comfortable night’s... more

Twin XL Firm 10.5" Gel/Foam Mattress - Alwyn Home Talamantez Cool Gel Foam Hybrid | 84 H x 72 W 11 D in Wayfair 7F61373A64DA41729E8DE7FE2E49DCA3

This CertiPUR-US Certified Hybrid mattress is designed to provide a firm comfortable feel, a deep level of support, and a long-lasting and consistent night's sleep. The individually wrapped Quantum innerspring system will reduce motion transfer and... more

Twin XL Firm 15" Hybrid Mattress - Kingsdown Passions Engleson Euro Pillowtop Mattress, Steel | 38 W x 15 D in Wayfair FG-36005-PT1-TL

The Kingsdown Passions Engleson collection provides the ideal combination of high-performance comfort features and fine, high-grade steel innerspring support. Gel-infused cooling fabric, cushioning layers of infused foam, and tri-zoned, individually... more

Twin XL Firm 15" Hybrid Mattress - Beautyrest Black KX-Class | 79.5 H x 83.5 W 15 D in Wayfair 700811496-1020

Elevate your sleep to a luxurious reward night after night. Our most advanced collection yet, the Beautyrest black hybrid 15" firm mattress offers up to 21% more support where your body needs it the most. With help from our new plant-based cooling... more

Twin XL Firm 11" Hybrid Mattress - Simmons PeacefulSleep | 79.5 H x 83.5 W 11 D in Wayfair 700812692-1020

The mattress brings you seriously satisfying sleep at prices that won't break the bank. With a traditional quilted top panel, our innerspring models feature first-rate foams to meet your comfort needs, a base layer for sink-free support, and... more

Twin XL Firm 12" Innerspring Mattress - Sealy Posturepedic Mill Road Tight Top | 80 H x 38 W 12 D in Wayfair 52950731

An upgraded spring mattress with motion-reducing encased coils targeted back and core support, and a reinforced edge for increased durability. The antibacterial, soft knit cover helps to keep you cool, and your mattress protected. Firm feel. Mattress... more

Twin XL Firm 15" Hybrid Mattress - Beautyrest Black KX-Class Plush | 79.5 H x 76 W 15 D in Wayfair 700811497-1020

Elevate your sleep to a luxurious reward night after night. Our most advanced collection yet, the Beautyrest black hybrid 15" firm mattress offers up to 21% more support where your body needs it the most. With help from our new plant-based cooling... more

Twin XL Firm 15.75" Innerspring Mattress - Beautyrest Black K-Class Pillow Top Mattress, Latex | 74.5 H x 83.5 W 15.75 D in Wayfair 700811479-1020

Elevate your sleep to a luxurious reward night after night. As the premier offering in our most advanced collection yet, the Beautyrest Black K-Class 15.75" Firm Pillow Top Mattress offers up to 21% more support where your body needs it the most.* With... more

Twin XL Firm 13.75" Innerspring Mattress - Beautyrest Black C-Class Mattress, Latex | 72 H x 83.5 W 13.75 D in Wayfair 700811474-1020

Elevate your sleep to a luxurious reward night after night. As a part of our most advanced collection yet, the Beautyrest black C-class 13.75" firm mattress offers up to 21% more support where your body needs it the most. With help from our new... more

Twin XL Firm 12" Gel/Foam Mattress - Gel Memory Foam & Box Spring ComforPedic Loft from Beautyrest | 80 H x 38 W 12 D in Wayfair 35602-04773-WFS

Elevate your sleep experience with the Comforpedic Loft from the Beautyrest gel memory foam mattress set. This upscale gel memory foam mattress provides three layers of support for a luxuriously comfortable sleeping experience. The gel memory foam... more

Twin XL Firm 15.5" Hybrid Mattress - Kingsdown Vintage Cushion Euro Pillow Top | 80.8 H x 38.3 W 15.5 D in Wayfair FG-36008-PT1-TL

The quintessential expression of luxury sleep. This will quickly become your sanctuary for deep, restorative sleep. With just the right combination of support and unique comfort features, this mattress is in a class of its own. With a gorgeous... more

Twin XL Firm 14" Gel/Foam Mattress - Comforpedic From Beautyrest Gel Memory Foam w/ Adjustable Base | 80 H x 38 W 14 D in Wayfair 35602-04791-WFA

The Comforpedic from Beautyrest 12'' Firm Gel Memory Foam Mattress is manufactured with top-of-the-line Gel memory foam and an adjustable foundation! Certified by CertiPur, premium Gel memory foam responds and adjusts to your body to provide optimal... more

Twin XL Firm 14" Gel/Foam Mattress - Comforpedic From Beautyrest Gel Memory Foam w/ Adjustable Base | 80 H x 38 W 14 D in Wayfair 35602-04791-WFA

The Comforpedic from Beautyrest 12'' Firm Gel Memory Foam Mattress is manufactured with top-of-the-line Gel memory foam and an adjustable foundation! Certified by CertiPur, premium Gel memory foam responds and adjusts to your body to provide optimal... more

Twin XL Firm 14" Gel/Foam Mattress - Gel Memory Foam & Box Spring ComforPedic Loft from Beautyrest | 80 H x 38 W 14 D in Wayfair 35602-04791-WFS

Elevate your sleep experience with the ComforPedic Loft from the Beautyrest gel memory foam mattress and box spring. This upscale gel memory foam mattress provides three layers of support for a luxuriously comfortable sleeping experience. The gel... more

Twin XL Medium 10" Memory Foam Mattress - Wayfair Sleep™ | 80 H x 38 W 10 D in 9665F6E1691F4394B7D49E7280B19DE2

This memory foam mattress updates your bed with support and a breathable feel all at once. It has a medium-firm feel made up of three layers: a high-density base foam, ventilated pressure relief foam, and a top layer of memory foam infused with green... more

Twin XL Firm 15" Hybrid Mattress - Kingsdown Passions Engleson Cushion Euro Pillowtop Mattress, Steel | 80 H x 38 W 15 D in Wayfair FG-36006-PT1-TL

This collection provides the ideal combination of high-grade steel innerspring support with high-performance comfort features. Gel-infused cooling fabric, cushioning layers of infused foam, and tri-zoned, individually wrapped coils work in concert to... more

Twin XL Firm 14" Innerspring Mattress - Sealy Posturepedic Mill Park Faux Euro Top & Box Spring Set | 80 H x 38 W 14 D in Wayfair 42952931

This Faux Euro Top mattress features the trusted motion-reducing encased coils and targeted memory foam support of similar Posturepedic Spring mattresses with a firm feel. A reinforced edge improves durability, while cover treatments help to keep you... more

Twin XL Firm 12" Innerspring Mattress - Sealy Posturepedic Mill Road Tight Top & Box Spring Set | 80 H x 38 W 12 D in Wayfair 42950831

An upgraded spring mattress with motion-reducing encased coils targeted back and core support, and a reinforced edge for increased durability. The antibacterial, soft knit cover helps to keep you cool, and your mattress protected. Firm feel. Box Spring... more

Twin XL Firm 10" Innerspring Mattress - Sealy Essentials Osage Tight Top | 80 H x 38 W 10 D in Wayfair 52875731

Perfect for guest beds, spare beds, and kids’ rooms, this spring mattress with a firm feel features response open coils and a seal support gel foam layer for an on-the-bed feeling. It’s a great night’s sleep at an affordable price. Mattress Size:... more

Twin XL Firm 13.75" Innerspring Mattress - Beautyrest Black C-Class Mattress, Latex | 72 H x 83.5 W 13.75 D in Wayfair 700811474-1020

Elevate your sleep to a luxurious reward night after night. As a part of our most advanced collection yet, the Beautyrest black C-class 13.75" firm mattress offers up to 21% more support where your body needs it the most. With help from our new... more

Twin XL Firm 15" Hybrid Mattress - Beautyrest Black KX-Class | 79.5 H x 83.5 W 15 D in Wayfair 700811496-1020

Elevate your sleep to a luxurious reward night after night. Our most advanced collection yet, the Beautyrest black hybrid 15" firm mattress offers up to 21% more support where your body needs it the most. With help from our new plant-based cooling... more

Twin XL Firm 13" Mattress - Brooklyn Bedding Plank Luxe Two Sided Firm/Ultra | 80 H x 38 W 13 D in Wayfair BBPLHY33XL

The flippable Plank Luxe is designed to be the firmest mattress on the market—pairing all of the benefits of the original Plank with the additional responsiveness and pressure point relief of individually encased coils. Put simply, the construction of... more

Twin XL Firm 17" Mattress - Stearns & Foster Reserve Pillow Top | 79 H x 38 W 17 D in Wayfair 53019931

The Stearns & Foster Reserve Collection is our highest expression of quality and the most comfortable mattress we’ve ever made—meticulously designed with our finest materials to deliver one-of-a-kind comfort. Mattress Size: Extra-long Twin | Twin XL... more

Twin XL Firm 17" Mattress - Stearns & Foster Pillow Top Box Spring | 79 H x 38 W 17 D in Wayfair 43019931

The Stearns & Foster Reserve Collection is our highest expression of quality and the most comfortable mattress we’ve ever made meticulously designed with our finest materials to deliver one-of-a-kind comfort. Mattress Size: Extra-long Twin | Twin XL... more