6 Inch Mattresses
Shop 6-inch foam mattresses from Sealy, Springwall, and NM at National Mattress — available in Single/Twin, Twin XL, Double/Full, Queen, and King sizes from $140 to $450. Our collection of 4 tight-top models includes firm, extra-firm, and medium options built on CertiPUR-US® certified polyfoam cores with features like edge support, low motion transfer, and moisture-wicking covers. Every 6-inch mattress is manufactured in Canadian factories and ships free across Canada with 5–10 year warranty coverage and a 365-night sleep trial. Open Bag savings available on select models from $91.
Mattress Size
Upgrade your sleep at National Mattress
Discover a mattress that transforms your sleep into a truly rejuvenating experience. We offer a wide variety of options to suit every sleep style and preference, ensuring a better night's sleep.
Why Choose Us?
- Variety: From plush to firm, we have options for every body type and sleep style.
- Quality: Trusted brands and top-notch materials for long-lasting comfort.
- Sleep Trials & Warranties: Enjoy peace of mind with flexible trials and warranties.
- Expert Advice: Get personalized recommendations from our sleep specialists.
Mattress Selection Includes
- Memory Foam: Contours to your body for personalized comfort and pressure relief.
- Hybrid: Combines responsive springs with foam for balanced support and comfort.
- Innerspring: Provides firm support, bounce, and cooling airflow.
- Latex: Hypoallergenic, eco-friendly, and exceptionally comfortable.
- Adjustable Beds: Customize your sleep position for optimal comfort.
