NM 12" Medium Firm Euro Top Mattress Performance & Feel - Full Comfort Analysis
Overview: The NM 12" Medium Firm Euro Top is an exceptional value hybrid offering deep body-hugging contour with balanced support, making it particularly well-suited for side sleepers and combination sleepers seeking plush comfort at an accessible price point. The primary trade-off is moderate cooling performance, as hot sleepers may want to consider breathable bedding or a mattress with more advanced cooling technology.
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 | Hybrid (Euro-top with Pocket Coils) |
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| Firmness | 5/10 (Medium) |
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| Mattress Height | 12 in (30.48 cm) |
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| Comfort Layer Thickness | 2.75 in (6.99 cm) |
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| Queen Price | $450 |
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| Fiberglass-Free | Yes |
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| Ships in a Box | Yes |
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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
- Side sleepers who need deep pressure relief at the shoulders and hips, as the thick Euro-top with gel memory foam and zoned coils create a plush, body-contouring cradle.
- Combination sleepers who move between positions throughout the night, thanks to the balanced medium feel (5/10) and responsive pocket coil system.
- Budget-conscious shoppers seeking a quality Canadian-made hybrid with 1000 pocket coils and excellent performance scores at under $500 (Queen).
Considerations
- Hot sleepers should note that the cooling score (7.3) is moderate; while gel-infused foam and coil airflow help, this may not be sufficient for those who sleep very warm.
- Strict stomach sleepers may find the medium feel (5/10) with 2.38 inches of sinkage allows more hip drop than they prefer; a firmer option may be better suited.
- The 12-inch height may require deep-pocket fitted sheets (14-16 inches recommended) depending on your current bedding.
Feel & Firmness
At 5/10 on the firmness scale, the NM 12" Medium Firm Euro Top delivers a balanced medium feel that works well for a wide range of sleepers. With 2.38 inches (6.05 cm) of sinkage, you will experience a deep, body-hugging cradle at the shoulders and hips. The Euro-top comfort system features VLS Cool Gel Memory Foam and 2-inch BioComfort™ Foam, creating a plush sleeping surface while the 1000 Hi-Loft pocket coils provide balanced support beneath.
The responsiveness score of 10.0 reflects excellent bounce and ease of movement despite the deep contouring. The pocket coils add spring and lift that prevents the "stuck in the mattress" feeling sometimes associated with softer memory foam beds. Combination sleepers who shift between side, back, and stomach positions throughout the night typically find the balance of cushioning and support makes position changes comfortable.
Cooling
This mattress earns a 7.3 cooling score, which is moderate for a hybrid. The VLS Cool Gel Memory Foam helps draw heat away from the body, while the 1000 Hi-Loft pocket coil core creates open channels for airflow. However, the thicker Euro-top quilting and memory foam layers can retain some heat compared to mattresses with more advanced cooling technology. In temperature observations, the mattress showed a baseline of 22.0°C (71.6°F), a maximum of 31.1°C (88.0°F), and settled at 26.3°C (79.3°F). Hot sleepers may benefit from breathable bedding or a cooling mattress protector.
Motion Isolation
Scoring a perfect 10.0 for motion isolation, this hybrid excels at minimizing sleep disturbances. The memory foam in the comfort layers filters out partner movement on contact, while the individually wrapped Hi-Loft pocket coils move independently to prevent motion from travelling across the bed. The foam edge encasement also helps contain vibration near the perimeter. Couples and light sleepers sharing the bed should notice minimal disruption even when their partner gets in and out of bed during the night.
Edge Support
With a perfect 10.0 edge support score, this mattress provides excellent perimeter stability thanks to the Foam Encasement Edge Guard surrounding the pocket coil unit. The sturdy 13-gauge coils add structural integrity that resists compression when sitting on the edge or sleeping near the side. Maximum edge sinkage was measured at 3.63 inches (9.22 cm), which is excellent for a plush medium-feel mattress. Couples who need to use the full sleep surface will appreciate the consistent support from centre to edge.
Pressure Relief
The NM 12" Medium Firm Euro Top earns a perfect 10.0 pressure relief score through its generous comfort system and zoned coil support. The VLS Cool Gel Memory Foam and 2-inch BioComfort™ Foam layers create deep cushioning at the shoulders and hips, while the zoned pocket coils add extra give at pressure points and provide targeted lift under the lumbar area. Side sleepers particularly benefit from this design, as the deep cradle allows the shoulder and hip to sink while maintaining proper spinal alignment.
Off-Gassing
As a bed-in-a-box hybrid with CertiPUR-US® certified foams, this mattress may have a low initial odour upon unboxing that typically dissipates within 2 days based on reported experience. The eco-friendly manufacturing and low-VOC certification help minimize chemical smells.
For best results, unbox your mattress in a well-ventilated room and allow it to air out for several hours before adding bedding. Washing your sheets before first use can also help ensure a fresh sleeping environment.
Construction & Materials
The NM 12" Medium Firm Euro Top is a Canadian-made hybrid mattress from National Mattress's Hi-Loft™ collection. The Euro-top comfort system features multiple layers including high-density foam with poly quilting, VLS Cool Gel Memory Foam for cooling and pressure relief, and 2-inch BioComfort™ Foam for additional cushioning. A 1.5-inch Stability Support Foam transition layer leads to the 1000 Hi-Loft pocket coil core (ranging from 572 coils in smaller sizes to 1320 in larger sizes) with Foam Encasement Edge Guard for perimeter support. This value-focused Canadian construction is backed by a 10-year warranty.
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| Layer (Top → Bottom) |
Material |
Thickness |
Notes |
| 1 | Euro-top Quilted Cover with High Density Foam | 0.75 in (1.91 cm) | 10oz poly fibre quilting |
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| 2 | VLS Cool Gel Memory Foam + BioComfort™ Foam | 2 in (5.08 cm) | Gel-infused for cooling |
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| 3 | Stability Support Foam | 1.5 in (3.81 cm) | Transition layer |
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| 4 | 1000 Hi-Loft Pocket Coils with Foam Encasement | 7.75 in (19.68 cm) | 13 gauge, 572-1320 coils by size |
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Sleep Position & Body Weight Fit
The medium feel (5/10) and generous Euro-top make this mattress particularly well-suited for side sleepers who need deep pressure relief at the shoulders and hips. The zoned pocket coils provide targeted support that keeps the spine aligned across different body weights. Back sleepers also find balanced support with the combination of cushioning comfort layers and supportive coils. Stomach sleepers may find the medium feel allows more hip sinkage than ideal, particularly lighter individuals who may not compress through to the firmer support layers.
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| Sleeper Weight |
Side Sleepers |
Back Sleepers |
Stomach Sleepers |
| Under 150 lb | Excellent | Good | Fair |
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| 150-250 lb | Excellent | Excellent | Good |
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| 250-300 lb | Good | Good | Fair |
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| 300+ lb | Fair | Good | Not ideal |
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Policies & What To Know
Related shopping help:
Shop all NM mattresses
Shop all Hybrid mattresses
Shop Medium mattresses
FAQs
Is the NM 12" Medium Firm Euro Top good for hot sleepers?
This mattress scores 7.3 for cooling, which is moderate for a hybrid. The VLS Cool Gel Memory Foam and pocket coil airflow help manage heat, but the thicker Euro-top may retain some warmth. Temperature observations showed the mattress settling at 26.3°C (79.3°F) after initial warming. Hot sleepers may benefit from breathable bedding or a cooling mattress protector for optimal temperature regulation.
Does the NM 12" Medium Firm Euro Top feel like you sink in or stay on top?
You will experience a deep, body-hugging cradle with this mattress. With 2.38 inches (6.05 cm) of sinkage and a medium firmness rating (5/10), the generous Euro-top creates noticeable contouring at the shoulders and hips. However, the 1000 Hi-Loft pocket coils beneath provide balanced support that prevents you from sinking too deeply.
Is it a good choice for couples?
This mattress is excellent for couples, earning a 10.0 Couples/Intimacy score. It excels in motion isolation (10.0), meaning partner movement is effectively absorbed without causing disturbance. Edge support (10.0) allows both sleepers to use the full surface comfortably, and the responsive bounce (10.0) makes repositioning easy.
What sleep positions is it best for?
The NM 12" Medium Firm Euro Top is particularly well-suited for side sleepers who benefit from its deep pressure relief at the shoulders and hips. Back sleepers in the 150-250 lb range also find excellent support. Stomach sleepers may find the medium feel allows more hip sinkage than ideal; those who sleep primarily on their stomach may want to consider a firmer option.
How long does off-gassing usually last?
Based on owner feedback and the CertiPUR-US® certified foams used in this mattress, any initial odour is typically low and dissipates within 2 days. For faster dissipation, unbox in a well-ventilated room and allow several hours of airing before making the bed.
