Serta PerfectcomfortX Phoenix Tight Top Luxury Firm

The Serta PerfectComfort X Phoenix is a 14.5-inch luxury-firm tight top on Serta's 5 ZoneActive coil system with micro coils and graphite memory foam, assembled in Canada, with a 10-year warranty. It is the tall firm bed in the PerfectComfort X line, for back and stomach sleepers who want firm support with a substantial profile.

What is inside the Serta Phoenix

• 14.5 inches, tight top, luxury-firm feel (firm on our floor).
• 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 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.
• Double, King, Queen and Twin XL.

Specifications: from Serta's 2024 dealer spec card and 2026 dealer spec sheet for the Phoenix, checked November 2026.

Who the Serta Phoenix suits

The Serta Phoenix is a good fit for back and stomach sleepers who want firm support, heavier sleepers who want depth working with the firmness, people who found firm beds too thin before, and couples (zoned coils isolate movement). Side sleepers usually want the Tux or the Relax.

How the Serta Phoenix compares

The Pixel is the same firm build at 14 inches with a smooth top. The Remix is the firm super pillow top at 15 inches. The iComfort Pro Northampton is the firm latex bed if you want latex instead of memory foam. 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 Serta Perfect Comfort X line at a glance (heights and feels from the maker's cards):

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.
• Tall bed: deep-pocket sheets fit best.
• One-sided; rotate head to foot every few months.
• Comes flat, not boxed. Keep the receipt and the law label for the warranty.

Questions we get asked about the Serta Phoenix

Who is the Serta Phoenix best for?

Back and stomach sleepers who want firm support, heavier sleepers who want depth working with the firmness, people who found firm beds too thin before, and couples (zoned coils isolate movement). Side sleepers usually want the Tux or the Relax.

Is the Serta Phoenix a good mattress?

Yes. The Serta Phoenix is from Serta's Perfect Comfort X line, Quilted Level 2, built on 5 ZoneActive™ Design: 5 zoned coils with contouring memory foam plus micro coils, with a 10-year warranty and made in Canada with domestic and imported parts. 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.

What does luxury firm mean?

Firm with a little more cushion at the surface than a plain firm. On our floor it is a firm.

What are micro coils for?

A layer of small springs between the comfort foam and the main zoned coils. They conform to your shape and add bounce, so a firm bed does not feel like a board.

Is it good for a heavier person?

Yes: 14.5 inches, zoned coils and firm support. Lie on it for ten minutes to be sure.

What is the difference from the Pixel?

Same build and firmness; the Phoenix has a quilted tight top and is half an inch taller, the Pixel has a smooth top.

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 tight top mattresses collection, and if you're still weighing whether a firmer bed is right for your back, our best mattress for back pain page sorts it out. We deliver across the Fraser Valley on Sundays; the rates are on our delivery page.