Labor Day Sale On King Size Side Sleeper Mattresses

Labor Day is the perfect time to upgrade your sleep with incredible savings during the labor day event on king size side sleeper mattresses. Discover a wide selection of options designed to help side sleepers enjoy more restful nights and wake up refreshed. Whether you’re looking for extra space or enhanced comfort, our collection of king size mattresses makes it easy to find the right fit for your needs. Take advantage of limited-time offers and make sleep easy™ with a new mattress built for your best rest.

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Beautyrest PressureSmart 2.0 Plush 11.75" Mattress

6246

Starting at

$1150⁰⁰

$2300⁹⁹

$1150 OFF

Plush Comfort, best for

Side Sleepers
Temperature;Bed Partner;Pain;Toss and Turn;Toss and Turn
Temperature
Bed Partner

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's By Sealy Memory Foam Plush Mattress

2680

Starting at

$650⁹⁹

$1630⁹⁹

$980 OFF

Plush Comfort, best for

Side Sleepers
Pain;Bed Partner;Toss and Turn;Temperature
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest PressureSmart 2.0 Plush Pillow Top 13.75" Mattress

2692

Starting at

$1200⁰⁰

$2400⁹⁹

$1200 OFF

Plush Comfort, best for

Side Sleepers
Temperature;Bed Partner;Pain;Toss and Turn;Toss and Turn
Temperature
Bed Partner

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 13.5" Plush Pillow Top Mattress

2749

Starting at

$750⁹⁹

$1500⁹⁹

$750 OFF

Plush Comfort, best for

Side Sleepers
Toss and Turn;Pain;Bed Partner;Temperature
Pain
Bed Partner

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Essentials Winter Green 13" Plush Euro Pillow Top Mattress

546

Starting at

$730⁹⁹

$1460⁹⁹

$730 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner;Pain;Temperature;Toss and Turn
Allergies
Temperature

Beautyrest BR800 12" Plush Euro Top Mattress

714

Starting at

$520⁹⁹

$1400⁹⁹

$880 OFF

Plush Comfort, best for

Side Sleepers
Toss and Turn;Pain;Bed Partner;Temperature
Pain
Bed Partner

Beautyrest Silver BRS900 12" Plush Mattress

1107

Starting at

$680⁹⁹

$1700⁹⁹

$1020 OFF

Plush Comfort, best for

Side Sleepers
Temperature;Pain;Bed Partner;Toss and Turn;Toss and Turn
Pain
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Nurture Night 14.5" Pillow Top Mattress

1090

Starting at

$917⁹⁹

$1249⁰⁰

$332 OFF

Plush Comfort, best for

Side Sleepers
Pain;Temperature;Bed Partner;Toss and Turn;Toss and Turn
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Elkins III 11" Plush Euro Top Mattress

1610

Starting at

$576⁹⁹

$1200⁹⁹

$624 OFF

Plush Comfort, best for

Side Sleepers
Pain;Temperature;Toss and Turn;Bed Partner
Temperature
Toss and Turn

Serta Perfect Sleeper Nurture Night 13.5" Plush Mattress

872

Starting at

$879²⁰

$1099⁰⁰

$220 OFF

Plush Comfort, best for

Side Sleepers
Pain;Bed Partner;Temperature;Toss and Turn;Toss and Turn
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Essentials Winter Green 12" Plush Euro Top Mattress

392

Starting at

$690⁹⁹

$1380⁹⁹

$690 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner;Pain;Temperature;Toss and Turn
Allergies
Temperature

Serta Perfect Sleeper Midsummer Nights 11" Plush Eurotop Mattress

839

Starting at

$799²⁰

$999⁰⁰

$200 OFF

Plush Comfort, best for

Side Sleepers
Pain;Bed Partner;Temperature;Toss and Turn;Toss and Turn
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Black Series Two 16.25" Plush Pillow Top Mattress

284

Starting at

$3799⁰⁰

$4099⁰⁰

$300 OFF

Plush Comfort, best for

Side Sleepers
Pain;Bed Partner;Temperature;Toss and Turn;Toss and Turn
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Soft Mattress

3434

Starting at

$4099⁰⁰

Plush Comfort, best for

Side Sleepers
Pain;Allergies;Bed Partner;Toss and Turn;Toss and Turn
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Purple RestorePlus 13" Soft Hybrid Mattress

1669

Starting at

$4099⁰⁰

$4399⁰⁰

$300 OFF

Plush Comfort, best for

Side Sleepers
Pain;Allergies;Bed Partner;Toss and Turn;Toss and Turn
Bed Partner
Temperature

Tempur-Pedic TEMPUR-LuxeAdapt 2.0 13" Soft Mattress

1480

Starting at

$5399⁰⁰

Plush Comfort, best for

Side Sleepers
Pain;Allergies;Bed Partner;Toss and Turn;Toss and Turn
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Labor Day is the perfect time to upgrade your sleep experience with incredible savings on king size side sleeper mattresses. This year’s Labor Day event features deep discounts on a wide selection of premium king mattresses designed specifically for side sleepers, ensuring you find the ideal combination of support and plush comfort. Side sleepers require targeted pressure relief at the hips and shoulders, and our handpicked collection includes innovative memory foam, hybrid, and advanced innerspring options tailored to cradle your body for optimal spinal alignment. Shopping during Labor Day means you can bring home a top-rated king size mattress for side sleepers at some of the lowest prices of the year.

Take advantage of these unbeatable Labor Day offers to enjoy restful nights and healthier mornings. Our knowledgeable team is here to help you choose from top mattress brands renowned for their quality and durability—whether you're seeking advanced cooling technology, motion isolation, or extra lumbar support in your king size side sleeper mattress. With exclusive holiday pricing, flexible financing options, and free delivery on select models, upgrading to a luxurious king mattress has never been easier or more affordable. Don't miss this limited-time opportunity to invest in your comfort during Mattress Firm’s Labor Day savings on king size side sleeper mattresses!

What features should side sleepers look for in a king size mattress during Labor Day promotions? + -

Side sleepers should prioritize mattresses that offer excellent pressure relief, especially around the shoulders and hips. Look for king size mattresses with memory foam or hybrid constructions, as these materials contour to the body and help maintain spinal alignment.

Why is Labor Day a popular time to shop for king size side sleeper mattresses? + -

Labor Day is known for significant mattress promotions, making it an ideal time to purchase a king size side sleeper mattress. Retailers often offer special offers and discounts, allowing shoppers to find high-quality options at more affordable prices.

How can I choose the right firmness level in a king size mattress for side sleeping? + -

Side sleepers typically benefit from medium-soft to medium-firm mattresses. These firmness levels provide enough cushioning to relieve pressure points while still supporting proper spinal alignment throughout the night.

Are there specific materials recommended for side sleepers in king size mattresses? + -

Yes, materials like memory foam, latex, and hybrid designs are often recommended for side sleepers. These materials conform closely to the body, reducing pressure on sensitive areas and enhancing comfort.

What are some benefits of upgrading to a king size mattress as a side sleeper during Labor Day events? + -

Upgrading to a king size mattress provides more space to move freely during sleep, which is especially beneficial for side sleepers who may change positions throughout the night. Taking advantage of Labor Day events can make this upgrade more accessible and budget-friendly.