Name: Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress
Brand: Serta Perfect Sleeper X
SKU: 1577339
Price: 2099 USD
Availability: InStock
Rating: 4.6 (78 reviews)

Kitchen Appliance Packages

Laundry Pairs

Washers

Dryers

Laundry Centers

Washer Dryer Combos

Drying Cabinets

Commercial Laundry

Laundry Accessories & Cleaners

Laundry

French Door Refrigerators

Side-by-Side Refrigerators

Top Freezer Refrigerators

Bottom Freezer Refrigerators

Built-In Refrigerators

Counter Depth Refrigerators

Freezerless Refrigerators

Column Refrigerators

Compact Refrigerators

Under The Counter Refrigerators

Beverage Centers

Wine Coolers

Kegerators

Refrigerator Drawers

Freezers

Ice Makers

Refrigeration Accessories & Cleaners

Refrigeration

Ranges

Cooktops

Microwaves

Wall Ovens

Range Hoods

Commercial Cooking

Cooking Accessories & Cleaners

Cooking

Built-In Dishwashers

Portable Dishwashers

Dishwasher Accessories & Cleaners

Dishwashers

BBQ Grills & Outdoor Cooking

Outdoor Kitchen

Coolers

Patio Heaters

Outdoor

Garbage Disposals

Trash Compactors

Heating & Cooling

Other Appliances

Cookware

Cutlery & Accessories

Cutting Boards

Housewares

Coffee & Espresso Makers

Countertop Ice Makers

Small Appliances

Commercial Appliances

Appliances

Default Dev Script Validation

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-1

Clipboard54.png

f5fa271d-88fd-4c41-9993-40110e8aad2d.pdf

Mattress Delivery What To Expect with Captions

7c2023d1-723c-4a68-9662-91147af49507.mp4

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-6

Clipboard59.png

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-3

Clipboard56.png

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-4

Clipboard57.png

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-5

Clipboard58.png

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-2

Clipboard55.png

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-7

Screenshot_3322.jpg

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-8

Screenshot_3323.jpg

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress-9

Screenshot_3324.jpg

Serta® perfectsleeper X™ Knox 13.75" Hybrid Plush Quilted Tight Top California King Mattress

A quilted top offers a classic feel and added layer of plush foam. Xtraordinary sleep is possible, with Serta® Quilted Perfect Sleeper X™.

Plush - Great for side sleepers for extra comfort at the shoulders, hips and lower back

Our 5 ZoneResponse™ Design combines coils and contouring memory foam for full body spinal alignment

Our PerfectConform™ Memory Foam contours and cradles your pressure points for rejuvenating sleep

CoolFeel™ System - Cooling technology keeps you comfortable throughout the night

Made to Order in the USA – Expertly crafted and assembled in U.S. factories using a blend of American-made and imported materials, guaranteeing exceptional quality and care

Serta has been in the sleep industry for over 90 years and has been dedicated the entire time to helping people like you find a solution to your sleep problems so you can finally sleep better than you ever have. We love helping people find their best sleep and this is why our brand exists.

We believe that mattress shopping shouldn’t be stressful. We also believe whether you are buying online or in-store, you should be comfortable during the entire purchase process. So no matter if you're a back, stomach or side sleeper or if you sleep at night or during the day, we have a product to help you get the sleep you deserve. Check out some of the things we’ve learned along the way that help us to continue to be able to bring new sleep innovations to the table.

*Mattress only, all other products sold separately. Images may not depict actual size.

Serta Presidents Day 2026 Promo

Experience premium support and perfect sleep with our new Serta® Quilted Perfect Sleeper X™ Collection. Our 5 ZoneResponse™ Design is comprised of Perfect Conform™ Memory Foam paired with 5-zoned coils for full-body alignment. Sleep comfortably cool throughout the night with cooling technology and graphite-infused memory foam designed to redistribute heat away from your body.