NM HD+ Advanced 8" Extra-firm High Density Foam Mattress - Queen, Certipur-us Certified, Made in Canada Reviews

4.8 Rating 42 Reviews

The NM HD+ Advanced 8" extra-firm high-density foam mattress is a solid slab of high-density foam, standing 8 inches tall. It's designed for back and stomach sleepers who prefer to sleep on top of the bed, rather than sinking into it. The mattress features zoned lumbar support, an Edge Guard perimeter, and a seamless, coil-free build that absorbs movement. The foam core has a density of 1.8 lb/ft³, which helps resist softening and body impressions over time. The mattress is made in Canada and is certified by CertiPUR-US. It's available in a queen size and comes in white and black colors.

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Phone:

800-631-4883

Email:

support@nationalmattress.ca

Location:

1655 Dundas Street East,
Mississauga
Ontario
L4X 1L5

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How would you rate the firmness of this mattress? Slightly firmer than expected

In what position do you sleep in? Side

What is your body weight range? 130 - 230 lbs

Do you tend to sleep hot? No

Do you share your bed with a partner? Yes

“Best mattress I have owned so far. Really improved my sleep”

Helpful Report

Posted 3 months ago

How would you rate the firmness of this mattress? As expected

In what position do you sleep in? Combination

What is your body weight range? 130 - 230 lbs

Do you tend to sleep hot? No

Do you share your bed with a partner? Yes

“This mattress was the BEST one I could have after buying and returning 3 mattresses from very popular brands!”

Helpful Report

Posted 4 months ago

How would you rate the firmness of this mattress? Firmer than expected

In what position do you sleep in? Side

What is your body weight range? 130 - 230 lbs

Do you tend to sleep hot? No

Do you share your bed with a partner? Yes

“Great mattress overall — the firmness is exactly as described, offering good support while still being comfortable. The quality feels premium and well-made. Delivery was quick and hassle-free, and the entire purchase process was smooth from start to finish. Very satisfied with the seamless transaction and would definitely recommend.”

Helpful Report

Posted 5 months ago

How would you rate the firmness of this mattress? As expected

In what position do you sleep in? Combination

What is your body weight range? 130 - 230 lbs

Do you tend to sleep hot? No

Do you share your bed with a partner? Yes

“So far we are super satisfied to the quality of this extra firm mattress.”

Helpful Report

Posted 5 months ago

How would you rate the firmness of this mattress? Slightly firmer than expected

In what position do you sleep in? Combination

What is your body weight range? 130 - 230 lbs

Do you tend to sleep hot? Yes

Do you share your bed with a partner? Yes

“Bought this mattress thinking “extra firm” was probably just marketing talk. Nope. This thing has the structural integrity of a Toronto sidewalk in winter. The first night, my body was confused, my spine filed a happiness report, and somehow I woke up without sounding like bubble wrap when getting out of bed. Jokes aside, it’s actually super comfortable if you like solid support. No sinking, no rolling into the middle, and no waking up feeling like you lost a fight with your mattress overnight. The quilted top keeps it from feeling too harsh, and it stays surprisingly cool. Also, motion isolation is legit — my partner moves around like they’re auditioning for WWE in their sleep and I barely notice. If you want a soft cloud-like mattress, this isn’t it. But if you want something supportive, durable, and firm enough to make chiropractors proud, this is a fantastic buy.”

Helpful Report

Posted 5 months ago

How would you rate the firmness of this mattress? Softer than expected

In what position do you sleep in? Side

What is your body weight range? 130 - 230 lbs

Do you tend to sleep hot? Yes

Do you share your bed with a partner? Yes

“The mattress is ok ,I slept comfortable with good dreams”

Helpful Report

Posted 5 months ago

How would you rate the firmness of this mattress? Firmer than expected

In what position do you sleep in? Back

What is your body weight range? 130 - 230 lbs

Do you tend to sleep hot? Yes

Do you share your bed with a partner? No

“Very firm better than i expected”

Helpful Report

Posted 6 months ago

How would you rate the firmness of this mattress? As expected

In what position do you sleep in? Combination

What is your body weight range? 130 - 230 lbs

Do you tend to sleep hot? No

Do you share your bed with a partner? Yes

“I had been dealing with back pain while sleeping on my old mattress, and most options in the market felt too soft and lacking proper support. After a lot of research, I finally chose this extra-firm mattress—and it’s been a great decision so far. It provides excellent back support, and the long replacement warranty is an added bonus. If you’re looking for a truly firm mattress, this one is definitely worth considering.”

1 Helpful Report

Posted 6 months ago