Novaform’s Serafina PerfectTemp is a 14-inch gel memory foam mattress built around phase-change cooling and sold in Plush, Medium, or Firm. Prices start at $749.99. In our testing, its biggest strengths were pressure relief and motion isolation. The main trade-offs were softer edges and the slower, sink-in response you expect from thick foam. It fits side sleepers and back sleepers best, especially couples, but it is less appealing for strict stomach sleepers and people who sleep very hot.
Table of Contents
Product Overview
| Mattress | Overall Score | Pros | Cons | Ideal For |
|---|---|---|---|---|
| Novaform Serafina PerfectTemp Mattress | 4.0/5.0 | Pressure relief, motion isolation, three firmness options | Slower response, softer edges, cooling has limits | Side and back sleepers, couples |
Final Verdict
In our Medium test setup, the Serafina PerfectTemp gave us a deep cradle without letting the hips drift out of line. The cover felt cool at bedtime, and movement stayed well contained across the surface. Our main drawbacks were the slower foam rebound and the softer perimeter.
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Who It’s For:
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Side and back sleepers who want pressure relief
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Couples who want strong motion isolation
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Shoppers who like Plush, Medium, and Firm options
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Who It’s Not For:
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Strict stomach sleepers who need a flatter top
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Very hot sleepers who want stronger airflow
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People who rely on firm edges for sitting
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How We Tested It
We followed our mattress testing process over multiple nights and changed positions to judge support and pressure relief after the foam fully expanded. Cooling was tracked by how quickly the surface warmed and whether heat lingered around the torso. Jenna and Ethan ran partner-movement drills for motion isolation, including getting in and out of bed, rolling, and knee drops. We scored responsiveness during quick turns, checked edge support while sitting and lying near the perimeter, and watched for early compression cues as part of our durability notes.
Testing Experience
The cover was the first thing we noticed. It felt cool and smooth at bedtime rather than icy. In our Medium sample, back sleeping kept the lumbar area steady, while side sleeping gave the shoulder enough room to sink without throwing the neck out of line. Marcus, who tends to be one of our hotter testers, liked the cool start but still noticed some warmth by morning, which lines up with what many hot sleepers report on thicker foam beds. Motion tests came back strong: when Ethan got up, Jenna felt a muted ripple instead of a sharp jolt. The trade-off showed up at the perimeter, which compressed when sitting, and the foam’s slower rebound made quick turns feel a little sticky for people who move around a lot in bed.

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What we liked:
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Cool-to-touch feel at bedtime
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Strong pressure relief at the shoulders and hips
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Excellent motion isolation for shared sleep
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Who it is best for:
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Side and back sleepers who like contouring
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Couples who wake easily
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Sleepers who prefer a calm, body-hugging surface
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Where it falls short:
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Edge sitters and perimeter sleepers
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Strict stomach sleepers who want quicker pushback
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Hot sleepers who need steadier airflow
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Pros & Cons
| Pros | Cons |
|---|---|
| Strong pressure relief at the shoulders and hips | Slower rebound during quick turns |
| Strong motion isolation for couples | Edge support compresses more than ideal |
| Cool-to-touch feel at bedtime | Warmth can build under heavier bedding |
| Three firmness options | Not a buoyant, on-top feel |
Details
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Price: Starting at $749.99
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Height: 14 inches
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Sizes: Queen, King, California King
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Firmness options: Plush, Medium, Firm
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Type: Gel memory foam
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Cooling: PerfectTemp system with dual phase-change material and a cool-touch cover
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Cover: Quilted cover with antimicrobial product protection
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Construction: Four-layer design with side handles
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Certifications: CertiPUR-US certified foam
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Fiberglass: None
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Origin: Foam made in the USA
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Setup: Compressed in a box; may take up to 48 hours to expand; compatible with platform beds, box springs, and adjustable bases
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Warranty: 20-year limited warranty
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Costco delivery and returns: Doorstep delivery without setup or package removal; returns accepted at Costco warehouses

Review Score
| Metric | Score (out of 5) | Remarks |
|---|---|---|
| Support | 4.1 | In our Medium testing, lumbar support stayed steady; heavier sleepers may prefer Firm. |
| Cooling | 3.9 | The surface started cool, though some heat still lingered under warmer bedding. |
| Pressure Relief | 4.4 | Our side-sleep testing eased pressure at the shoulders and hips. |
| Motion Isolation | 4.6 | Partner movement stayed muted and localized. |
| Responsiveness | 3.5 | The cradle was comfortable, but the rebound felt slow during quick turns. |
| Edge Support | 3.6 | Perimeter compression was noticeable when sitting and sleeping near the edge. |
| Durability | 4.0 | Early rebound looked consistent, with no obvious weak spots after repeated loading. |
| Overall | 4.0 | A strong all-foam option with excellent isolation and familiar foam trade-offs. |
How to Choose the Novaform Serafina PerfectTemp Mattress
Start with sleep position. Plush or Medium makes more sense for side sleepers who want more give at the shoulder and hip, while back sleepers are usually safer in Medium or Firm for steadier pelvic support. If you sleep hot, treat the cooling features as help rather than a cure-all and pair them with breathable bedding.
Couples should think about trade-offs. Our testing showed strong motion isolation, so partner movement is well controlled, but the edge support is only average. If both sleepers spread out or use the outer third of the bed, that softer perimeter matters.

Limitations
This is still a thick memory-foam mattress, so it does not feel especially quick or buoyant. Our testing also found the perimeter softer than ideal. Strict stomach sleepers, heavier sleepers who carry more weight through the midsection, and anyone who leans hard on the edge may do better on a firmer, more supportive design.
Novaform Serafina PerfectTemp Mattress vs. Alternatives
Choose the Serafina PerfectTemp if you want strong pressure relief, very good motion isolation, and the option to pick Plush, Medium, or Firm. Look elsewhere if you need faster response, stronger edges, or more natural airflow.
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Nectar Classic Memory Foam Mattress: softer, more budget-friendly pressure relief for lighter side sleepers.
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Casper Original Mattress: a quicker all-foam feel for combination sleepers.
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TEMPUR-Adapt Mattress: denser, steadier contouring for people who want a more substantial foam feel.
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Saatva Classic Mattress: more bounce, stronger edges, and better airflow than a typical all-foam bed.
Pro Tips for the Novaform Serafina PerfectTemp Mattress
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Give it up to 48 hours after unboxing before you judge the firmness.
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Use breathable sheets and lighter bedding if you want the cooling features to do more.
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Rotate it every few months to help spread out wear.
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If you rely on the edge to get dressed, expect more dip than you would get from a hybrid or innerspring.
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Raise it gradually on an adjustable base for the smoothest feel.
FAQs
Does it actually sleep cool?
It starts cool and comfortable, but it still behaves like memory foam over the course of the night. Breathable bedding and a cooler room help.
Is it good for couples?
Yes. In our motion tests, movement stayed well contained. The bigger compromise is the softer perimeter, which matters more for couples who both use the edges.
Which firmness should I pick?
Plush works best for lighter side sleepers. Medium is the safest all-around choice. Firm suits back sleepers and anyone who wants a flatter surface.
Can I use it on an adjustable base?
Yes. In our setup, it bent cleanly without bunching and stayed stable at a moderate incline.