Novaform Serafina PerfectTemp Review

Yes—if you want a close, pressure-relieving foam feel without paying premium-brand prices. The Medium sample cushioned the shoulders and hips while keeping the lumbar area supported, and movement stayed localized when a partner turned or got out of bed. Its phase-change materials made the surface feel cool at bedtime, but they did not create the steady airflow of a coil mattress. The main compromises were a slow foam rebound and a perimeter that compressed noticeably while sitting.

• Who it’s for:

  • Side and back sleepers who want deep contouring without losing midsection support

  • Couples who are easily disturbed by movement

  • Shoppers who want a choice of Plush, Medium, or Firm

• Who should skip it:

  • Strict stomach sleepers who need a flatter, faster-supporting surface

  • Very hot sleepers who need consistent airflow through the mattress

  • Anyone who regularly sits or sleeps along the edge

We followed our standard mattress testing process after the Medium sample had fully expanded. Testers changed between back, side, and stomach positions to evaluate support and alignment as well as pressure relief. We tracked surface temperature before and after lying down, then watched how quickly the cover cooled once the bed was empty. Jenna and Ethan repeated partner-movement drills for motion isolation, including rolling over, getting in and out of bed, and controlled ball drops. Quick turns showed how readily the foam responded, while seated and lying tests measured edge support. Repeated loading also helped us check for early compression or uneven recovery.

The Medium sample reached its full 14-inch profile after 48 hours and felt like a 5.8 out of 10 on our firmness scale. The cover had a smooth, cool finish rather than an icy feel. Back sleeping kept the pelvis from dropping too far, while side sleeping allowed enough shoulder sink to keep the neck level. The foam hugged closely, but it never felt as loose or unsupportive as a very soft bed.

Cooling was most noticeable at the start of the night. The surface rose from 70.8°F to 78.6°F after 30 minutes of lying down, then cooled to within 2°F of its starting temperature 10 minutes after we got up. Marcus, our warmest sleeper, still felt some heat around his torso by morning, so the phase-change system helps without making this the best choice for every hot sleeper.

Motion control was the clearest strength. After a 10-pound ball was dropped from 6 inches, the visible vibration at the other side settled in 0.8 seconds. When Ethan got out of bed, Jenna noticed a soft ripple instead of a jolt. The trade-off appeared around the perimeter: the same 150-pound load compressed the edge by 2.3 inches versus 1.6 inches at the center. The foam also took a moment to fill back in after quick turns, which made repeated position changes feel slightly sticky.

• What we liked:

  • A cool-to-the-touch cover that is especially pleasant at bedtime

  • Deep pressure relief at the shoulders and hips without obvious pelvic sag in the Medium model

  • Excellent motion isolation for partners with different schedules

• Who it is best for:

  • Side and back sleepers who enjoy a close, body-hugging feel

  • Light sleepers who share a bed with a restless partner

  • People who want thick foam cushioning and do not change positions constantly

• Where it falls short:

  • The edge dips enough to matter when sitting or sleeping near the perimeter

  • Strict stomach sleepers may not get quick enough support under the hips

  • The surface warms gradually despite its strong initial cooling effect

• Price: Manufacturer-listed starting price of $749.99; Costco promotions may vary

• Height: 14 inches

• Sizes: Queen, King, California King

• Firmness options: Plush, Medium, Firm

• Type: Gel memory foam

• Cooling: PerfectTemp system with dual phase-change material and a cool-touch cover

• Cover: Quilted cover with antimicrobial product protection

• Construction: Four foam layers with side handles

• Certifications: CertiPUR-US certified foam

• Fiberglass: None

• Origin: Foam made in the USA

• Setup: Compressed in a box; may take up to 48 hours to expand; compatible with platform beds, box springs, and adjustable bases

• Warranty: 20-year limited warranty

• Costco delivery and returns: Standard doorstep delivery excludes setup and packaging removal; paid setup may be available at checkout, and returns are accepted at Costco warehouses under Costco’s terms

Start with your sleep position. Plush gives lighter side sleepers more room at the shoulder and hip. Medium is the safest choice for most side sleepers, back sleepers, and partners with different preferences. Firm is the better fit for back sleepers who want less contouring and stomach sleepers who need steadier support under the midsection.

Body weight changes how each version feels. A lighter sleeper may find Medium fairly firm, while a heavier sleeper will sink deeper and may get better alignment from Firm. If you sleep hot, the cooling materials are useful, but breathable bedding will still matter.

Couples also need to weigh motion control against usable space. Movement stayed very well contained on the Medium sample, but the softer perimeter makes the outer few inches less comfortable. That matters if both partners spread out or one person regularly sleeps near the edge.

This is a thick memory-foam mattress, so it does not feel quick or buoyant. The perimeter also compresses more than the center, which reduces usable space for people who sleep close to the edge. Strict stomach sleepers, heavier sleepers who carry more weight through the midsection, and anyone who pushes hard on the edge may be happier with a firmer, more supportive design.

The phase-change materials improve the initial surface feel, but they do not turn dense foam into a high-airflow bed. People who overheat easily should use light bedding or consider a mattress with coils. The three firmness choices also perform differently, so the results in this review apply most directly to the Medium version.

The Serafina PerfectTemp makes the most sense if you want thick foam contouring, excellent motion isolation, and a choice of firmness levels around the midrange price tier. The following options offer meaningfully different feels or buying policies.

Nectar Classic Memory Foam Mattress: This 12-inch, medium-firm model is the closest direct value comparison. It usually costs a little less and adds a 365-night trial, but it does not offer the Serafina’s Plush and Firm choices. Pick Nectar if a longer home trial matters more than choosing among three feels.

Casper The One: Casper’s current entry-level foam model has a more responsive, medium-firm feel and a three-layer build. It is easier to move across than the Serafina, while the Novaform provides a deeper cradle and more firmness choice. Casper The One is the better fit for combination sleepers who dislike slow-moving foam.

TEMPUR-Adapt Mattress: The 11-inch TEMPUR-Adapt uses a denser, more conforming feel and is available in Medium foam or Medium Hybrid. It costs substantially more than the Serafina, so it is an upgrade choice for shoppers who specifically want TEMPUR material rather than a same-price alternative.

Saatva Classic Mattress: The Saatva Classic is a premium innerspring with more bounce, easier movement, and better airflow through its coil system. It also costs far more. Choose it when edge stability, responsiveness, and in-room setup matter more than the Serafina’s close contouring and quiet surface.

• Let the mattress expand for up to 48 hours before making a final judgment about its height or firmness.

• Use breathable sheets and lighter bedding so the cool-touch cover is not buried under heat-trapping layers.

• Rotate the mattress every few months to spread wear across the surface.

• If you sit on the edge while getting dressed, expect more dip than you would get from a reinforced hybrid or innerspring.

• Raise the head and foot gradually on an adjustable base so the thick foam has time to flex into position.