NM Orthopedic Supreme 13" Firm Flippable Tight Top Mattress Performance & Feel - Full Comfort Analysis
Overview: The NM Orthopedic Supreme 13" Firm Flippable is a Canadian-made traditional innerspring mattress featuring a double-tempered Bonnell coil system with a dual-sided, flippable design that extends mattress lifespan, delivering exceptional edge support, responsiveness, and value for back and stomach sleepers who need firm, supportive sleep. The primary trade-offs are moderate motion isolation and cooling compared to pocket coil hybrids, though the flippable design and traditional construction offer durability advantages.
Realistic Expectations
These scores reflect realistic expectations based on construction, materials, and verified owner feedback. Your results will vary by body type, base, and room temperature.
Quick Specs
| Spec | Details |
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| Mattress Type | Traditional Innerspring (Bonnell Coil) |
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| Firmness | 9/10 (Firm) |
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| Mattress Height | 13 in (33.02 cm) |
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| Comfort Layer Thickness | 2 in (5.08 cm) per side |
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| Queen Price | $427 |
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| Fiberglass-Free | Yes |
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| Flippable | Yes (Dual-Sided) |
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| Certifications | CertiPUR-US® certified foams |
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Comfort IQ™ Scores are derived from published specifications, materials, and construction details to help compare mattresses consistently.
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Best For
- Back and stomach sleepers who need firm support (9/10) with a traditional innerspring feel that provides excellent bounce and keeps you sleeping on top of the mattress.
- Those seeking a flippable mattress for extended lifespan and value, as the dual-sided design allows you to rotate and flip for more even wear distribution over time.
- Budget-conscious shoppers who want a quality Canadian-made orthopedic mattress with Edge Guard, lumbar support, and a 10-year warranty at under $450 (Queen).
Considerations
- Couples who are sensitive to partner movement should note the motion isolation score (8.0); connected Bonnell coils transfer more motion than individually wrapped pocket coils.
- This mattress is not compatible with adjustable bed bases due to the traditional innerspring construction and flippable design.
- Side sleepers should consider a softer option; the firm feel (9/10) with limited comfort layers provides less cushioning at the shoulders and hips than pillow top or memory foam models.
Feel & Firmness
At 9/10 on the firmness scale, the NM Orthopedic Supreme 13" Firm Flippable is slightly firmer than typical firm mattresses, delivering a supportive, on-top sleeping experience. With only 1.51 inches (3.84 cm) of sinkage, you will feel firmly positioned on the surface with light body contouring rather than cradled into the mattress. The tight-top design and HD+ High Density Foam quilting create a traditional firm feel that orthopedic sleepers appreciate.
The responsiveness score of 10.0 reflects the excellent bounce characteristic of traditional Bonnell coil construction. The double-tempered coils add spring and lift that makes changing positions feel effortless. Unlike memory foam mattresses, there is no slow sink or stuck feeling; the coil system pushes back instantly, making this ideal for combination sleepers who move frequently and prefer a firm, buoyant surface.
Cooling
This mattress earns a 7.8 cooling score, which is good for a traditional innerspring. The breathable cotton blend quilted cover allows air circulation at the sleep surface, while the open Bonnell coil system promotes natural airflow throughout the mattress interior. Unlike foam-heavy hybrids, the minimal foam content means less heat retention. In temperature observations, the mattress showed a baseline of 22.0°C (71.6°F), a maximum of 29.9°C (85.8°F), and settled at 24.5°C (76.1°F). Most sleepers should find this mattress sleeps comfortably cool.
Motion Isolation
Scoring 8.0 for motion isolation, this mattress provides moderate partner disturbance reduction. The foam quilting and tight-top construction help dampen vibration at the surface. However, the connected Bonnell coil system transfers more motion across the mattress compared to individually wrapped pocket coils. Couples where one partner moves frequently or has different sleep schedules may notice some disturbance, though the firmness helps minimize prolonged movement.
Edge Support
With a perfect 10.0 edge support score, this mattress provides exceptional perimeter stability thanks to the Edge Guard system and high-density foam inserts surrounding the coil unit. The sturdy 12.5-gauge double-tempered Bonnell coils add structural integrity that resists compression when sitting on the edge or sleeping near the side. Maximum edge sinkage was measured at only 2.50 inches (6.35 cm), which is excellent. Those who sit on the edge frequently or share the bed will appreciate the consistent support from centre to edge.
Pressure Relief
The NM Orthopedic Supreme 13" Firm Flippable earns a 9.3 pressure relief score, which is excellent for a firm innerspring mattress. The 2-inch HD+ High Density Foam layer on each side provides cushioning at the surface, while the center and lumbar support zoning adds targeted reinforcement in the midsection. Back sleepers find excellent support and pressure distribution with the combination of firm surface comfort and zoned coils. However, side sleepers may find the firm surface provides less cushioning at the shoulders and hips than softer options.
Off-Gassing
As a traditional innerspring mattress with CertiPUR-US® certified foams and minimal foam content, this mattress may have very low initial odour upon delivery that typically dissipates within 1 day based on reported experience. The traditional innerspring construction has significantly less foam to off-gas compared to all-foam or hybrid mattresses.
For best results, allow the mattress to air out in a well-ventilated room after delivery. The breathable cotton cover and open coil system help any minimal odour dissipate quickly.
Construction & Materials
The NM Orthopedic Supreme 13" Firm Flippable is a Canadian-made traditional innerspring mattress from National Mattress's Orthopedic collection with a dual-sided, flippable design for extended lifespan. Both sides feature a cotton blend cover with dual-sided cotton support quilting over 2 inches of HD+™ High Density Foam with center and lumbar support zoning. The support core consists of a double-tempered Bonnell coil system (ranging from 240 coils in smaller sizes to 576 coils in larger sizes) with 12.5-gauge wire and high-density foam inserts. The Edge Guard perimeter system provides stability around the entire mattress. This durable, value-focused construction is backed by a 10-year warranty.
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| Layer (Top → Bottom) |
Material |
Thickness |
Notes |
| 1 (Top) | Cotton Blend Cover + Cotton Support Quilt | Quilted | Breathable, dual-sided |
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| 2 (Top) | HD+™ High Density Foam | 2 in (5.08 cm) | Center & lumbar support |
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| 3 (Core) | Double Tempered Bonnell Coils + HD Foam Inserts | 9 in (22.86 cm) | 12.5 gauge, 240-576 coils by size |
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| 4 (Bottom) | HD+™ High Density Foam | 2 in (5.08 cm) | Center & lumbar support |
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| 5 (Bottom) | Cotton Blend Cover + Cotton Support Quilt | Quilted | Flippable sleeping surface |
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Sleep Position & Body Weight Fit
The firm feel (9/10) and traditional Bonnell coil system make this mattress particularly well-suited for back and stomach sleepers who need a stable, supportive surface to maintain proper spinal alignment. The zoned center and lumbar support provides targeted reinforcement through the midsection. Side sleepers will typically find this mattress too firm, as there is limited material to cushion the shoulders and hips. The table below provides general guidance based on typical sleeper experiences.
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| Sleeper Weight |
Side Sleepers |
Back Sleepers |
Stomach Sleepers |
| Under 150 lb | Fair | Good | Excellent |
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| 150-250 lb | Fair | Excellent | Excellent |
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| 250-300 lb | Fair | Excellent | Excellent |
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| 300+ lb | Fair | Good | Good |
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Policies & What To Know
Related shopping help:
Shop all NM mattresses
Shop all Innerspring mattresses
Shop Firm mattresses
FAQs
Is the NM Orthopedic Supreme 13" Firm Flippable good for hot sleepers?
This mattress scores 7.8 for cooling, which is good for a traditional innerspring. The breathable cotton cover and open Bonnell coil system promote natural airflow. Temperature observations showed the mattress settling at 24.5°C (76.1°F), which is comfortable for most sleepers. The minimal foam content also means less heat retention compared to foam-heavy mattresses.
Does the NM Orthopedic Supreme 13" feel like you sink in or stay on top?
You will stay firmly on top of this mattress. With only 1.51 inches (3.84 cm) of sinkage and a firm rating (9/10), the tight-top design provides a supportive, on-top sleeping experience with only light body contouring. There is no deep-sink or body-hugging sensation with this mattress.
Is it a good choice for couples?
This mattress is good for couples, earning a 9.3 Couples/Intimacy score. It excels in edge support (10.0) and bounce (10.0), which is excellent for shared use. However, motion isolation (8.0) is moderate compared to pocket coil hybrids. The connected Bonnell coil system transfers more motion than individually wrapped coils, so light sleepers may notice partner movement.
What sleep positions is it best for?
The NM Orthopedic Supreme 13" is best suited for back and stomach sleepers who need a firm, supportive surface to prevent hip sinking and maintain proper spinal alignment. The zoned lumbar support helps keep the spine level. Side sleepers will typically find this mattress too firm, as it provides limited cushioning at the shoulders and hips.
How does the flippable design extend mattress life?
The dual-sided design allows you to flip and rotate the mattress regularly, distributing wear evenly across both sleeping surfaces. This helps prevent body impressions and sagging from forming in a single area, potentially extending the usable lifespan of the mattress compared to one-sided designs. We recommend flipping the mattress every 3-6 months for optimal wear distribution.
