Sealy Firm Mattresses

Discover restful support and lasting comfort with our selection of Sealy firm mattresses. Designed for those who prefer a solid, supportive sleep surface, these mattresses offer a dependable foundation for a refreshing night’s sleep. Explore a variety of sizes and styles to find the ideal fit for your bedroom and enjoy the quality craftsmanship that Sealy is known for. Upgrade your sleep experience with Sealy firm mattresses and wake up feeling your best every morning.

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Sealy Essentials Sudley 8.5" Firm Mattress

910

Starting at

$400⁹⁹

$1000⁹⁹

$600 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Pain

Sealy Essentials Spruce 5.5" Firm Mattress

1029

Starting at

$650⁹⁹

Firm Comfort, best for

Back;Stomach Sleepers
Pain

Sealy Posturepedic Plus Hybrid High Point 14" Firm Mattress

3763

Starting at

$2399⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

Sealy Posturepedic Elite Hybrid High Point II 14" Firm Mattress

129

Starting at

$2149⁰⁰

$2349⁰⁰

$200 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Sealy Posturepedic Elite Albany II 14" Firm Mattress

120

Starting at

$1499⁰⁰

$1599⁰⁰

$100 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Sealy Posturepedic Ashurst II 13" Firm Mattress

Starting at

$1199⁰⁰

$1699⁰⁰

$500 OFF

Firm Comfort, best for

Back Sleepers
Pain
Allergies

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Sealy Ellenton II 12" Firm Mattress

Starting at

$1069⁰⁰

$1469⁰⁰

$400 OFF

Firm Comfort, best for

Back Sleepers
Pain
Allergies

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Sealy Posturepedic Hybrid Ashurst II 12" Firm Mattress

Starting at

$1399⁰⁰

$1899⁰⁰

$500 OFF

Firm Comfort, best for

Back Sleepers
Pain
Allergies

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Sealy Posturepedic Pro Hybrid Lacey II 13" Firm Mattress

Starting at

$1949⁰⁰

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Sealy Posturepedic Elite Brenham II 16" Firm Euro Top Mattress

Starting at

$2399⁰⁰

$2499⁰⁰

$100 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Sealy Posturepedic Plus Norman II 15" Firm Euro Top Mattress

Starting at

$1599⁰⁰

$2099⁰⁰

$500 OFF

Firm Comfort, best for

Back Sleepers
Pain
Allergies

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Sealy Posturepedic Pro Lacey II 14" Firm Mattress

Starting at

$1299⁰⁰

$1749⁰⁰

$450 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Sealy Posturepedic Elite Hybrid Brenham II 14" Firm Mattress

Starting at

$1899⁰⁰

$1999⁰⁰

$100 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Sealy Firm Mattresses

When it comes to creating a restful sleep environment, the foundation you choose plays a pivotal role in your nightly comfort and overall well-being. Firm mattresses, in particular, are designed to provide a stable, supportive surface that many sleepers find ideal for maintaining proper spinal alignment. This type of mattress is especially popular among those who prefer a sleep surface that doesn’t sink deeply under their weight, offering a feeling of sleeping “on” rather than “in” the bed. In the heart of summer, when warm nights can make it challenging to find a comfortable position, a firm mattress can help keep you cool by minimizing the enveloping sensation that often comes with softer beds. For back and stomach sleepers, or those who experience back discomfort, the structured support of a firm mattress can be transformative, reducing pressure on sensitive areas and helping to alleviate morning aches. Couples often appreciate the reduced motion transfer that comes with a firmer surface, ensuring that one partner’s movements don’t disturb the other’s rest.

Firm mattresses are also an excellent consideration for guest rooms, college dorms, or as thoughtful gifts for loved ones embarking on new life chapters, such as recent graduates or newlyweds setting up their first home together. The reliable support of a firm mattress suits a wide range of body types and sleep preferences, making it a versatile choice for households with diverse needs. Parents often select firmer mattresses for growing children and teenagers, as the extra support can promote healthy posture development during important years of growth. In the summer months, when families gather for visits or children return home from school, a firm mattress can ensure that everyone enjoys a cool, comfortable, and rejuvenating night’s sleep, even during the hottest nights. For those who love to host out-of-town guests, providing a firm mattress in the guest room is a gesture of hospitality that shows attention to comfort and care, helping visitors wake up refreshed and ready to enjoy the day’s activities.

Choosing the right firmness level is a personal journey, and it’s important to consider your unique sleep habits, health needs, and preferences. For some, a very firm mattress might feel too rigid, especially for side sleepers who need a bit more contouring at the shoulders and hips. If you find yourself torn between the sturdy support of a firm mattress and the gentle give of a softer surface, exploring options in the middle range can be a wise step. Many shoppers discover that a medium-feel mattress offers the best of both worlds, balancing support with just enough cushioning for pressure relief. If you’re interested in learning more about these versatile options, you can explore our selection of Sealy Medium Mattresses for a comprehensive look at what might suit your needs. Ultimately, investing in the right mattress is about enhancing your daily life—helping you wake up feeling rested, energized, and ready to make the most of every season. Whether you’re outfitting a master bedroom, updating a child’s room, or preparing for summer guests, a thoughtfully chosen firm mattress can be the cornerstone of a healthier, happier home.