Serta Perfect Day 8 inch Medium Mattress in a Box on a modern blue headboard bed frame. 8 inch Serta Perfect Day Medium Mattress featuring a breathable quilted white top and blue border. Close-up of Serta Perfect Day mattress corner showing high-quality stitching and firm edge support. Top view of a Serta Perfect Day 8 inch Medium Mattress with a premium diamond quilted surface. Interior view of Serta Perfect Day 8 inch mattress showing individually wrapped coils for motion isolation. Serta Perfect Day Medium Mattress in a Box on a blue frame with the iconic Serta sheep plush. Happy couple unboxing their new Serta Perfect Day 8 inch Medium Mattress in a Box in their bedroom. Serta Perfect Day 8 inch Medium Mattress styled in a modern bedroom for balanced comfort and support. Angled view of a Serta Perfect Day 8 inch Medium Mattress in a Box for pressure-relieving sleep. Iconic Serta sheep resting on the Serta Perfect Day 8 inch Medium Mattress in a Box for cozy comfort. Two men easily unboxing the Serta Perfect Day 8 inch Medium Mattress from its compact shipping box. Diagram of Serta Perfect Day 8 inch Medium Mattress layers including 3-zone targeted support system.
Serta Perfect Day 8" Medium Mattress in a Box
Ultra Soft Soft Medium Soft Medium Medium Firm Firm Extra Firm

Serta Perfect Day 8" Medium Mattress in a Box

$295.00
$599.00
Save $304.00
Brand: Serta
Size
Best for Side, back and combination sleepers
i Size Guide
$295.00
Only 17 left in stock
Free Shipping Free Shipping
10-Year Limited Warranty, 10-Year Limited Warranty,

To begin with, the Serta 8 Inch Mattress in a Box delivers a stress-free boxed delivery experience that glides through tight halls and stairways with ease. Next, a breathable knit mattress cover greets you with a cool, smooth touch, while layers of PillowSoft Aire Foam create body-contouring comfort that eases everyday pressure.

Beneath the foam, individually wrapped coils supply medium-firm lift for balanced alignment, turning this bed into an affordable 8-inch mattress for side sleepers and back sleepers alike. Because of its slim 8-inch profile, it doubles as a small space firm mattress USA option for bunk beds, trundles, or guest rooms without sacrificing the reliable Serta brand quality shoppers trust. 

Finally, you can buy an Serta 8-inch mattress online at Cloudy Mattress today, enjoy free shipping in the USA, and pocket instant savings from the current Serta boxed bed sale, all while securing well-rounded medium comfort for less.

Balanced Medium Comfort Feel

Cushioning foams blend with sturdy coils for all-position support.

3-Zone Targeted Support System

Zoned gel foam band and coils keep hips and lower back in better alignment.

Individually Wrapped Coil Core

Springs dampen partner motion, delivering motion isolation technology for couples.

Enhanced Cushioning Layers

PillowSoft® Aire Foam relieves pressure for deeper comfort.

Compact 8″ Profile

Fits bunks, trundles, and tight staircases without hassle.

Budget-Friendly Deal

Sale pricing makes this Affordable Serta foam mattress easy to own.

Key Mattress Benefits

Serta Perfect Day 8" Medium Mattress in a Box

6 Layers
Of Cooling
Comfort

Soft knit fabric promotes airflow for a fresher sleep surface.

Ventilated comfort foam molds lightly to curves and relieves pressure.

Second cushioning layer deepens contouring while preserving medium support.

Targeted strip reinforces the lumbar region and helps the spine stay level.

Hundreds of pocketed coils add bounce, limit motion, and extend durability.

High-density base foam steadies the coil unit for long-term reliability.

Serta Perfect Day 8" Medium Mattress in a Box
Serta Perfect Day 8" Medium Mattress in a Box Serta Perfect Day 8" Medium Mattress in a Box
CLOUDY MATTRESS IS THE SMARTER CHOICE
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CLOUDY MATTRESS IS THE SMARTER CHOICE

From better sleep support to trusted quality, Cloudy Mattress gives you more value for your money.

SHIPPING

FASTEST SHIPPING

Get your new mattress delivered quicker than ever with our priority nationwide shipping. No long waits, comfort arrives right at your door step, fast.

CUSTOMER SUPPORT

24 / 7 CUSTOMER SUPPORT

Whether its day or night, our dedicated team is always available to answer questions, resolve issues, and guide you through every step.

GUIDANCE

EXPERT GUIDANCE

Not sure which mattress suits you best? our sleep experts are here to help you choose the perfect option tailored to your comfort, health and lifestyle needs.

GUARANTEED

BEST PRICE GUARANTEED

Shop with confidence knowing you're getting the best value. If you find a better deal, we'll matach it, guaranteed.

WE'VE GOT ANSWERS
HAVE QUESTIONS?

WE'VE GOT ANSWERS

Designed for deep comfort and better rest, so you wake up refreshed and ready for the day

The mattress reaches usable firmness within about four hours, though full height and feel develop over 24 hours at an average room temperature.

Yes. The medium comfort rating and cushioned foams relieve shoulder and hip pressure, making it comfortable for most side sleepers.

No. Any solid platform, slatted frame with gaps under three inches, bunkie board, or adjustable base will support it well. A box spring is optional.

Serta uses foams that meet U.S. safety standards for indoor air quality. The bed is shipped factory-sealed and releases minimal off-gassing that dissipates within a few hours.

Most trundles accept mattresses up to eight inches tall, so this low-profile model usually fits. Measure the trundle frame depth to confirm adequate clearance, especially if bedding or a protector is added.

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