Online Only

Sealy HTL Ultra Firm

subtotal:

$474.99 $774.99

get it Delivery date contingent on available inventory

Local
Delivery

Local delivery and set up is included for a flat fee of $69.99 within 25 miles of any Sit ‘n Sleep store.

We will also "haul away" your old mattress and box spring upon delivery of your new order: Just let us know!

Next day delivery on available inventory. Not applicable for UPS and FedEx orders. See our COVID-19 page for more information.

120-Night Sleep Trial

Buying a new mattress is not something you do everyday. Our 120-night sleep trial and comfort guarantee means you can rest easy.

10 Year Warranty

You spend a third of your life asleep on your mattress. Shouldn't you at least lay on it first? Come visit one of our 39 store locations and get comfy with your purchase.

Mattress Removal

We will "haul away" your old mattress and box spring upon delivery of your new order: Just let us know if you would like this service.

The Sealy Posturepedic® HTL Ultra Firm mattress is inspired by our work with orthopedic specialists and features all of the quality and durability you expect from Sealy®, along with trusted support, motion-absorbing responsive coils, and a breathable, antibacterial cover.

This model not available in retail locations, ONLINE ONLY.

How to Choose the Right Mattress Firmness for You
Not sure if ultra firm is your match? Here’s a quick guide to firmness levels and who they work best for:

  • Soft: Great for side sleepers who need to ease pressure at joints such as the shoulders and hips.
  • Medium: Ideal for combination sleepers (like people who shift into different sleep positions throughout the night) because it offers a mix of support and soft comfort.
  • Firm/Ultra Firm: Best for back and stomach sleepers because it helps reduce back pain by maintaining proper spine alignment.

When you’re deciding on a new mattress, think about your primary sleeping position and whether you prefer a plush or more supportive feel. That will be a key factor to finding the right fit. Our expert sleep consultants are here to help find the right mattress for you!

Ultra Firm Mattress-Layered with exclusive foams and Response Open Coils to give you the perfect support you need.

Why Choose the Sealy HTL Ultra Firm Mattress? 

Looking for serious support without sacrificing comfort? Here’s why the HTL Ultra Firm stands out when you’re looking to purchase a new mattress: 

  • Super Firm Feel, Engineered for Alignment

    A reflection of Sealy’s partnership with orthopedic specialists, this mattress delivers reinforced support for your back and core. 

  • Targeted Foam + Coil Technology 

    The perfect combo of responsive open coils and pressure-relieving SealyCool™ foams provides durable support that adapts to your body. 

  • Cooler, Cleaner Sleep Surface 

    The ComfortLoft™ Cover with SealyChill™ keeps you cool, while Surface-Guard Technology™ helps protect against bacteria and allergens. 

  • Edge-to-Edge Stability 

    The SolidEdge™ support system helps you feel secure across the entire sleep surface, with no sagging near the edges. 

  • Built to Last 

    Every component is backed by a 10-year warranty and crafted with Sealy’s reputation for long-term quality. 

For those who love an extra-firm, no-sink sleep experience, this Sealy HTL Ultra Firm mattress delivers night after nigh Extra support for your back and core

Add a Base and Frame:

Knickerbocker Promo Frame

from $69.99

get it Delivery date contingent on available inventory

Primo Rapid Foundation

from $299.99

get it Delivery date contingent on available inventory

Sealy Ease 4.0 Adjustable Base

from $899.00

get it Delivery date contingent on available inventory

Have Questions?

We're here to help. Give us a call or visit your local store.

Firm

Ultra Firm Mattress-Layered with exclusive foams and Response Open Coils to give you the perfect support you need.

Key Feature

Surface-Guard Technology™ and SealyChill™

Ready for Your Best Night’s Sleep?

COMFORTLOFT™ COVER WITH SEALYCHILL™ AND SURFACE-GUARD TECHNOLOGY™

SEALYCOOL™ AIR GEL FOAM

SEALYCOOL™ GEL MEMORY FOAM

RESPONSE COILS

SOLIDEDGE™

Designed and assembled in the U.S.

CertiPUR-US® Certified

Mattress Heigh (Approx.) 11.5"

Mattress is adjustable friendly - works well on motion bases.

10 Year Warranty

COMFORTLOFT™ COVER WITH SEALYCHILL™ AND SURFACE-GUARD TECHNOLOGY™: Our quilted, easy-care knit cover features cool-to-the-touch fibers for comfort and antibacterial Surface-Guard Technology™ to help keep your mattress protected.

SEALYCOOL™ AIR GEL FOAM: Get ultra-cushioning comfort and added airflow with this super-soft version of our high-quality traditional foam, uniquely shaped with peaks and valleys.

SEALYCOOL™ GEL MEMORY FOAM: Promotes a cooling environment and helps cushion, delivering breathable comfort and a deeper level of conforming support in a wide variety of feels.

RESPONSE COILS: A layer of precisely engineered, open coils which respond to your movement to support you throughout the night.

SOLIDEDGE™: A reinforced foam border around the mattress edge, which improves the durability of the mattress.

Approx. 

Twin 38" x 75" x 11.5" 

Twin XL 38" x 80" x 11.5" 

Full 54" x 75" x 11.5" 

Queen 60" x 80" x 11.5" 

King 76" x 80" x 11.5" 

CA King 72" x 84" x 11.5"

What Customers Are Saying