NM 8" Medium Firm Euro-top Foam Mattress Performance & Feel - Full Comfort Analysis
Overview: This budget-friendly all-foam mattress suits back and side sleepers who want exceptional motion isolation without coil bounce, especially couples on a tight budget. The main trade-off is limited edge support and cooling, which may concern hot sleepers or those who frequently sit on the bed's perimeter.
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 | All-Foam (Euro-top) |
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| Firmness | 4/10 (Medium) |
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| Mattress Height | 8 in (20.3 cm) |
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| Comfort Layer Thickness | 1.75 in (4.4 cm) |
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| Queen Price | $338 |
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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
- Couples seeking undisturbed sleep, thanks to exceptional 10/10 motion isolation that absorbs partner movement.
- Budget-conscious shoppers wanting Canadian-made quality and CertiPUR-US certified foams at under $350 (Queen).
- Back sleepers and lighter-weight side sleepers who prefer a supportive, on-top feel with subtle contouring.
Considerations
- Hot sleepers may find the all-foam construction retains more heat than hybrid or coil mattresses, despite the breathable cotton cover.
- Edge support is limited (5.3/10); those who sit on the bed perimeter or sleep near the edge may notice compression.
- Heavier individuals (250+ lb) or strict stomach sleepers may prefer a firmer model for adequate spinal support.
Feel & Firmness
At 4/10 on the firmness scale, this mattress lands in the medium range with a slightly softer-than-average feel. The BioComfort foam comfort layer provides subtle cushioning without the deep sink-in sensation of memory foam, giving you a "supported but not stuck" experience. Most sleepers will feel like they rest on top of the mattress rather than sinking into it.
The high resilient foam transition layer adds responsiveness, making it easy to change positions during the night. This combination works well for combination sleepers who move between back and side positions. The overall feel is best described as supportive with gentle contouring, rather than plush or enveloping.
Cooling
With a cooling score of 5.9/10, this mattress offers modest temperature regulation. The breathable cotton quilted cover allows some airflow at the sleep surface, helping dissipate initial body heat. During testing conditions, the surface temperature rose from a baseline of 22.0°C (71.6°F) to a maximum of 30.5°C (86.9°F) before settling at 25.3°C (77.5°F). Hot sleepers should note that all-foam constructions typically retain more heat than hybrid or innerspring designs. Consider breathable sheets and a cooler bedroom environment if you tend to sleep warm.
Motion Isolation
This is where the NM 8" truly excels, earning a perfect 10/10 motion isolation score. The all-foam construction acts like a shock absorber, virtually eliminating vibration transfer across the sleep surface. If your partner tosses, turns, or gets up during the night, you are unlikely to feel it. The dense 1.8 lb/ft³ high-density foam core further stabilizes the mattress and reduces any lingering movement. This makes it an outstanding choice for light sleepers sharing a bed.
Edge Support
Edge support scores 5.3/10, reflecting the inherent limitations of an all-foam design without reinforced perimeter support. The high-density foam core does help maintain more consistent support toward the edges compared to lower-density foam mattresses. You can comfortably sleep near the edge without feeling like you might roll off, but sitting on the perimeter (such as when getting dressed) will produce noticeable compression. Couples who use the full surface area or those who prefer sitting on the bedside may want to consider this limitation.
Pressure Relief
The pressure relief score of 7.3/10 reflects solid cushioning for most sleepers. The Euro-top construction with 1.75 in of BioComfort foam creates subtle contouring at the shoulders and hips, while the underlying support foams prevent excessive sinking. Back sleepers in the 150 to 250 lb range typically find good pressure distribution. Side sleepers may find adequate relief at the shoulder and hip, though those with broader shoulders or who need deeper cushioning might prefer a plusher model. The medium firmness balances contouring with support, helping prevent the "bottoming out" feeling.
Off-Gassing
With a 9.0/10 off-gassing score and CertiPUR-US certified foams, this mattress produces minimal new-mattress odour. Initial smell strength is rated as low, with any detectable scent typically clearing within 2 days of unboxing.
For best results, unbox your mattress in a well-ventilated room and allow it to expand for a few hours before making the bed. Washing your new sheets before first use can also help ensure a fresh sleep environment from day one.
Construction & Materials
This Canadian-made all-foam mattress stands 8 inches tall with a Euro-top design built for value-conscious shoppers. The soft cotton cover features a quilted channel design and non-skid bottom for stability on any bed frame. Beneath the cover, layered foam provides a balance of cushioning and support: the BioComfort foam comfort layer offers responsive cushioning, while high resilient and high-density transition foams create a stable foundation. The 1.8 lb/ft³ density core is built for consistent support and shape retention over time. All foams are CertiPUR-US certified, and the mattress ships compressed in a box for easy delivery and setup.
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Layer
(Top → Bottom) |
Material |
Thickness |
Notes |
| 1 | Cotton Channel Quilted Cover | 0.5 in (1.3 cm) | Soft, breathable, non-skid bottom |
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| 2 | Firm BioComfort™ Foam | 1.75 in (4.4 cm) | Responsive comfort layer |
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| 3 | High Resilient Foam | 1.5 in (3.8 cm) | Transition/support layer |
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| 4 | High Density Foam | 0.75 in (1.9 cm) | Additional transition support |
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| 5 | Optimal High Density Foam Core | 3.5 in (8.9 cm) | 1.8 lb/ft³ density base support |
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Sleep Position & Body Weight Fit
The medium firmness (4/10) and all-foam construction make this mattress most suitable for back sleepers and lighter-weight side sleepers. Back sleepers typically find good lumbar support without excessive sinking. Side sleepers under 200 lb often experience adequate shoulder and hip cushioning, though heavier side sleepers may prefer more contouring. Stomach sleepers generally need firmer support to prevent hip sinking, so this model may feel too soft for that position, especially at higher body weights.
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| Sleeper Weight |
Side Sleepers |
Back Sleepers |
Stomach Sleepers |
| Under 150 lb | Good | Excellent | Fair |
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| 150–250 lb | Good | Good | Fair |
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| 250–300 lb | Fair | Fair | Not ideal |
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| 300+ lb | Fair | Fair | Not ideal |
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Policies & What To Know
Related shopping help:
Shop more from NM® HD+™ Core series •
Shop all NM® mattresses •
Shop all foam mattresses
FAQs
Is the NM 8" Medium Firm Euro-top Foam Mattress good for hot sleepers?
With a cooling score of 5.9/10, this mattress offers modest temperature regulation through its breathable cotton quilted cover. The all-foam construction tends to retain more body heat than hybrid or innerspring designs. During testing, surface temperature peaked at 30.5°C (86.9°F) before settling to 25.3°C (77.5°F). Hot sleepers may want to pair this mattress with breathable bedding and keep the bedroom cool for optimal comfort.
Does the NM 8" Medium Firm Euro-top Foam Mattress feel like you sink in or stay on top?
Most sleepers experience an "on top" feel rather than a deep sink-in sensation. With a sinkage depth of approximately 1.9 inches (4.8 cm) and a medium firmness of 4/10, the mattress provides subtle contouring at pressure points without enveloping you. The BioComfort foam comfort layer cushions gently while the dense support core keeps you lifted.
Is it a good choice for couples?
Yes, particularly for couples who prioritize undisturbed sleep. The exceptional 10/10 motion isolation score means partner movement is virtually undetectable across the sleep surface. The couples/intimacy score of 7.6/10 reflects strong motion control, though the lower bounce (7.5/10) and modest edge support (5.3/10) are worth noting. Overall, it excels at keeping partners from disturbing each other during the night.
What sleep positions is it best for?
This mattress typically works best for back sleepers and lighter-weight side sleepers (under 200 lb). The medium firmness provides good lumbar support for back sleeping while offering enough cushioning for side sleeping shoulders and hips. Stomach sleepers and heavier individuals (250+ lb) may find it too soft to maintain proper spinal alignment and might prefer a firmer option.
How long does off-gassing usually last?
Off-gassing is minimal with this CertiPUR-US certified mattress. Initial smell strength is rated as low, and any new-mattress odour typically clears within 2 days. For quickest results, unbox in a well-ventilated room with windows open or a fan circulating air. The smell is not harmful but simply the natural result of compressed foam releasing air after packaging.
