Serta Perfect Sleeper X Quilted Hybrid King Mattress, 13.75-Inch Extra Firm

Serta Perfect Sleeper X Quilted Hybrid is a 13.75-inch extra-firm king mattress combining memory foam and pocketed coils. The listing describes a five-zone support design and graphite-infused memory foam for heat distribution, but shoppers should weigh its firm feel and full-size delivery requirements against their space and comfort preferences.

At a glance

Extra-firm feel is described as suited to stomach and back sleepers seeking firmer support.
Memory foam paired with pocketed coils forms the listed hybrid construction.
The manufacturer describes graphite-infused memory foam as helping distribute heat.
Ships full-size rather than compressed. Plan for moving and delivery access.

Price

$2,199.00Save 15%

Reference price: ~~$2,599.00~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

King size and a listed 13.75-inch profile provide a substantial mattress format.
The foam-and-pocketed-coil build combines contouring materials with a coil support system.
A five-zone design is described as combining firmer support zones with contouring zones.

Cons

The extra-firm feel may not suit sleepers who prefer a softer, more cushioning surface.
Full-size shipping can make handling and getting the mattress into the room more demanding than compressed delivery.

Technical specifications

20 specifications

Identity
Brand	Serta
Model number	500145251-1060
Model name	Perfect Sleeper X Quilted Hybrid

Dimensions and installation
Dimensions listed	79.5 x 76 x 13.75 inches
Weight listed	124.3 pounds
Size	King
Compressed for shipping	Mattress is not compressed due to high-quality construction and ships full-size; delivery services and add-on costs vary by region and appear at checkout if available, otherwise door drop-off; seek help moving

Construction and feel
Construction	Hybrid
Fill materials	Memory Foam, Pocketed Coils
Mattress comfort layer	Memory foam
Coil type	Pocketed Coil
Number of coils	35
Number of layers	7
Firmness	Extra Firm
Top style	Tight Top
Cover material	Polyester Blend
Color	Black

Claimed features
Listed features	Breathable, Durable, Low Motion Transfer, Pressure Relief, Temperature Regulating
Cooling description	This cooling technology utilizes graphite infused memory foam to promote heat distribution and keep you comfortable throughout the night
Support design	Serta's 5 Zone Response Design combines coils and contouring memory foam for full body spinal alignment; Plush coils contour and cradle your pressure points while firm coils support the natural curves of your body

What to know before buying

Listing details to confirm

The listing identifies graphite-infused memory foam and a five-zone design, while its general features also mention temperature regulation and pressure relief. These are manufacturer descriptions, not independently established performance outcomes. Delivery options and any add-on costs vary by region. The listed coil count is 35, so confirm that detail if it matters to your purchase.

What’s in the box

Included

Mattress

Who is it for?

A good fit for

Stomach or back sleepers who prefer an extra-firm feel.
King-bed shoppers looking for a hybrid mattress with memory foam and pocketed coils.
Buyers able to accommodate a full-size delivery and arrange help moving a 124.3-pound mattress.

Less suited to

People who prefer a plush or softer mattress feel.
Shoppers who need a compact, compressed mattress package for easier handling.

Serta Perfect Sleeper X Quilted Hybrid King Mattress, 13.75-Inch Extra Firm · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.8 / 5 · 4 ratings

5 stars71%71%
4 stars0%0%
3 stars0%0%
2 stars0%0%
1 star29%29%

Only aggregate ratings are available, with no written customer feedback supplied. The ratings are split between five-star and one-star categories, so they indicate notably different reported impressions but do not explain the reasons. With a small rating sample, they are limited guidance for judging whether this extra-firm hybrid will suit your comfort preferences.

Frequently asked questions

What firmness is listed for this mattress?

It is listed as Extra Firm. The feature text presents it as suitable for stomach and back sleepers seeking extra support, but comfort is personal.

Does the mattress arrive compressed?

No. The listing says the king mattress ships full-size rather than compressed. Delivery services and add-on costs vary by region, and the listing says it may otherwise be left at the door.

What materials are listed?

The listing names memory foam and pocketed coils, with a polyester-blend cover. It also describes graphite-infused memory foam and a five-zone coil-and-foam support design.

What is the listed size and weight?

The listing specifies King, dimensions of 79.5 x 76 x 13.75 inches, and a weight of 124.3 pounds.