Serta PerfectcomfortX Relax Super Pillow Top Plush

The Serta PerfectComfort X Relax is a 15-inch plush super pillow top on Serta's 5 ZoneActive coil system with micro coils and graphite memory foam, made in Canada, with a 10-year warranty. It is the softest PerfectComfort X: a thick pad on top of a zoned, micro-coiled unit.

What is inside the Serta Perfect Comfort X Relax

• 15 inches, super pillow top, plush feel.
• Quilt (the top layers you lie on): CoolFeel™ fabric, PerfectPure™ fibre, 1/2 inch of QuiltLoft™ memory foam, 1 inch of PillowSoft® foam.
• Comfort layers, top to bottom: 1 inch of Perfect Conform™ graphite memory foam, 1 inch of Cool Twist® gel memory foam, 1 inch of PillowSoft® foam, inner panel, 1/2 inch of Serta® support foam, 1 inch of Perfect Conform™ micro coils, 1/2 inch of Serta® support foam.
• Support: 8-inch 2550 5-ZoneActive™ coil system, 1/2 inch of Serta® support foam.
• CertiPUR-US certified foams. Assembled in Canada.
• Adjustable-base compatible. 10-year warranty from Serta.
• Twin XL, Double, Queen and King.

Specifications: layer build from Serta's 2026 dealer spec sheet for the Relax, checked November 2026.

Who the Serta Perfect Comfort X Relax suits

The Serta Perfect Comfort X Relax is a good fit for side sleepers who want cushioning at the shoulder, hip and lower back, people who like memory foam's contour, hot sleepers who want it with cooling, and couples. Back and stomach sleepers usually want the Remix.

How the Serta Perfect Comfort X Relax compares

The Remix is the same super pillow top in firm. The Tux is the plush smooth top without the pad. The Beautyrest World Class Lusso is the Beautyrest super pillow top to compare. Serta's Canadian lines, from the entry up: Perfect Day (boxed, 800 StablEdge coils), Classic, Perfect Sleeper (three-zone coils, Cool Twist gel foam), PerfectComfort X (five-zone coils with micro coils and graphite memory foam), and the all-foam iComfort and latex iComfort Pro.

The price

Save 25 to 70% on premium mattresses: the price above is per mattress, as of November 2026, and the live price on this page is the one you pay. Foundations and frames are sold separately.

Practical

• Box spring, platform or slats; adjustable bases: yes.
• Fifteen inches tall: deep-pocket sheets.
• One-sided; rotate head to foot every few months. A thick pad settles sooner than a tight top; rotating evens it.
• Comes flat, not boxed. Keep the receipt and the law label for the warranty.

Questions we get asked about the Serta Perfect Comfort X Relax

Who is the Serta Perfect Comfort X Relax best for?

Side sleepers who want cushioning at the shoulder, hip and lower back, people who like memory foam's contour, hot sleepers who want it with cooling, and couples. Back and stomach sleepers usually want the Remix.

Is the Serta Perfect Comfort X Relax a good mattress?

Yes. The Serta Perfect Comfort X Relax is a 15-inch plush super pillow top on Serta's 5 ZoneActive coil system with micro coils and graphite memory foam, CertiPUR-US certified foams, assembled in Canada, with a 10-year warranty. We sell it at 25 to 70% below regular retail, nobody here works on commission, and you're welcome to lie on it in the store before you decide.

Will I sink too far?

The pad is thick, but under it are micro coils and five zones of main coils, so the base holds. Heavier sleepers who feel they are through the pad should try the Remix.

Is it good for side sleepers?

Yes. It is the plush super pillow top of the line.

Does it sleep hot?

Graphite memory foam pulls heat away and the coils move air; a thick pad still holds more warmth than a smooth top. Bedding does the most.

What is the difference from the Remix?

Same build and height; the Remix is firm, the Relax plush.

Try it in the store

Lie on it for ten minutes the way you actually sleep. We are at 101-44703 Yale Road in Chilliwack, open 10 am to 6 pm every day, and nobody here works on commission. For what the words tight top, pillow top, euro top and hybrid mean, read mattress types explained; for firm, medium and plush, mattress firmness explained. For the whole Serta range side by side, read our Serta lineup; this bed is in our pillow top mattresses collection, and if you're still weighing a pillow top against a euro top, our pillow top vs euro top page sorts it out. We deliver across the Fraser Valley on Sundays; the rates are on our delivery page.