Serta PerfectSleeper Wondrous Smooth Top Plush - 13"

The Serta Perfect Sleeper Wondrous is a 13-inch plush smooth top on Serta's three-zone coil system with a Relief-Gel zone through the middle, Cool Twist gel memory foam and a layer of wool, made in Canada, with a 10-year warranty. It is the plush Perfect Sleeper for a side sleeper who wants soft cushioning and a dedicated lower-back zone.

What is inside the Serta Wondrous

• 13 inches, smooth top (no quilted pad), plush feel.
• Cover and top layers: CoolFeel™ Plus fabric, 1 inch of Cool Twist® gel memory foam.
• Comfort layers, top to bottom: 3 inches of PillowSoft® foam, 1/2 inch of Touch-of-Wool TempFibre (the wool layer), Serta® Relief-Gel Zone in the centre third.
• Support: 1050 3-zoned coil system with Best Edge® foam encasement, 1/2 inch of Serta® balanced support pad.
• CertiPUR-US certified foams. Made in Canada with domestic and imported parts.
• Adjustable-base compatible. 10-year warranty from Serta.
• Twin, Twin XL, Double, Queen and King.

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

Who the Serta Wondrous suits

The Serta Wondrous is a good fit for side sleepers who want cushioning at the shoulder and hip, people with lower-back discomfort who want a gel support zone under it, and anyone who wants a plush bed without paying for the five-zone PerfectComfort X build. Back and stomach sleepers usually want a firmer Perfect Sleeper.

How the Serta Wondrous compares

The PerfectComfort X Tux is the step up in plush smooth tops: five zones, micro coils and graphite memory foam. The Perfect Day Sunup is the lower-priced plush Serta in a box. 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 Sleeper 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.
• 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 Wondrous

Who is the Serta Wondrous best for?

Side sleepers who want cushioning at the shoulder and hip, people with lower-back discomfort who want a gel support zone under it, and anyone who wants a plush bed without paying for the five-zone PerfectComfort X build. Back and stomach sleepers usually want a firmer Perfect Sleeper.

Is the Serta Wondrous a good mattress?

Yes. The Serta Wondrous is from Serta's Perfect Sleeper line, Smooth Top, built on 1050 coil density system, individually wrapped, 3 zones, 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 the Relief-Gel zone do?

The centre third of the coil unit carries a gel-foam zone under the hips and lower back, so the softest part of the bed is not under the heaviest part of you.

Smooth top or pillow top?

Smooth top: the comfort layers sit right under the cover with no quilted pad. It feels plush because of the foams, not a pad, and sleeps cooler.

Is it good for side sleepers?

Yes. Plush with gel memory foam at the surface and support through the middle.

Why is there wool in it?

Wool in the comfort layer wicks moisture and evens out temperature, which is why it shows up in beds built to sleep cool.

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 a hybrid against an all-foam bed, our hybrid vs memory foam page sorts it out. We deliver across the Fraser Valley on Sundays; the rates are on our delivery page.