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5 Best Mattresses King Sizes of 2026

Last Updated - 2026/06/13

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

BedStory

BedStory Medium Firm King Mattress 12 Inch, Deep Sleep Hybrid Mattress with Extra Lumbar Support, King Size Bed in a Box for Spine Alignment ＆ Pressure Relief, CertiPUR-US Certified, 365-Night Trial

BedStory

CA$629.99

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Main highlights
- King Mattress In A Box: The king size mattress is rolled and compressed in a box for shipping, easy setting them up at home. The mattress may take 72 hours to expand after being unpacked, and sometimes needs longger because of the environmental factor.
- Individual Pocketed Springs ＆ Motion Isolation: BedStory Hotel-collection matelas king support system is constructed with hundreds of independent pocketed springs, minimizing the noice and motion transfer from your partner or pet during the night.
- Certified Safe ＆ Skin-friendly: Bedstory's hybrid mattress king is strictly certified by CertiPUR-US and Oeko-Tex Standard 100, ensuring skin-friendly, non-toxic and fiberglass-free material, providing a safe and healthy sleeping environment for your family.
- Back Pain Relief ＆ Pressure Relief: Combining the advantages of traditional spring mattresses and memory foam mattresses. Bedstory king mattresses features multiple layers of foam and reinforced pocket springs provides extra supports for pressure points and helps maintain proper spinal alignment
- 365 Nights Trial & 10-Year Service: As a top-tier and long-established mattress manufacturer, Bedstory provides long-lasting comfort and professional support, offering you a worry-free purchase with a 365-night trial and a 10-year warranty on this superior mattress.
- 12 inch 2026 Upgraded Pocket Springs King Size Hybrid Mattress, offering Upgraded Motion-isolation and more Comfort
CA$629.99
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

BedStory

BedStory King Mattress Medium Firm, 12 Inch Hybrid Matelas with Individual Coils, Mattress in a Box for Extra Lumbar Support ＆ Motion-isolation, Fiberglass-Free, CertiPUR-US Certified, 365-Night Trial

BedStory

CA$559.99

More Details
Main highlights
- PRESSURE RELIEF: Bedstory matelas king features comfy euro-top design with gel-infused memory foam that helps regulate temperature throughout the night. It gently conforms to your body, evenly distributes your weight, and supports proper spinal alignment—relieving pressure points for deeper, more restful sleep.
- LUXURY HYBRID MATTRESS: BedStory king size mattress combines the benefits of innerspring, gel memory foam and two additional comfort layers of high-density foam to bring the balance of ultra comfort and stable support, making it perfectly cradling your spine in optimal alignment for restorative sleep.
- INDEPENDENTLY POCKET SPRING: The mattress king consists of hundreds of individual pocket springs, helping to reduce motion transfer and noise made by your partner, allowing your deep sleep not to be disturbed. Especially suitable for light sleepers.
- Certified Safe ＆ Skin-friendly: Bedstory's hybrid mattress is strictly certified by CertiPUR-US and Oeko-Tex Standard 100, ensuring skin-friendly, non-toxic and fiberglass-free material, providing a safe and healthy sleeping environment for your family.
- 365 Nights Trial & 10-Year Service: As a Top-tier and long-established mattress manufacturer, Bedstory provides long-lasting comfort and professional support, offering you a worry-free purchase with a 365-night trial and a 10-year warranty on this superior mattress.
- 12 inch Upgraded Pocket Springs King Size Hybrid Mattress, offering Upgraded edge reinforcement and more comfort
CA$559.99
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Zinus

Zinus King Mattress - 10 Inch Green Tea Cooling Gel Memory Foam Mattress, Pressure Relief, for Cool Sleep, CertiPUR-US Certified Foam, Mattress in a Box, 10-Year Warranty, King Size

Zinus

CA$345.00

More Details
Main highlights
- WORRY-FREE WARRANTY – A 10-year limited warranty is included with the mattress; please allow 24–72 hours for your mattress to expand to its original shape
- REJUVENATING SUPPORT – Pressure-relieving memory foam conforms to the shape of your body to enhance circulation and decrease stress on your joints, and is infused with cooling gel for ultimate temperature regulation
- COOLER SLEEP AND A CLEANER PLANET – Topped with soothing gel memory foam, this mattress is designed to help keep you cool and comfortable throughout the night, and ships in a new smaller box to support a reduced carbon footprint
- CERTIFIED SAFE MATERIALS – Crafted from high-quality CertiPUR-US certified foam and wrapped with an OEKO-TEX certified mattress cover all produced without the use of harmful chemicals for safer, healthier sleep
- ALL NIGHT FRESHNESS - The all-natural green tea and purified charcoal infusions work together to help keep your mattress fresh for many nights to come
CA$345.00
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

DEHIJU

King Mattress, 12 Inch Memory Foam & Pocket Spring Hybrid Mattress, Certified Foam, Mattress in a Box, King Size

DEHIJU

CA$369.99

More Details
Main highlights
- 【WORRY FREE AFTER-SALES SERVICE】As the brand owner and manufacturer, we are rigorously tested and inspected every step of the production process, to provide you with 100% quality assurance and considerate after-sales service. If you have any unsatisfactory problems, please feel free to contact us to help you solve, thank you!
- 【ULTIMATE COMFORT MATERIAL】Mattress in a box is made of high quality safe and harmless materials, fabric after careful and unique design to achieve soft and skin-friendly, durable, anti-pilling effect, suitable for all to enjoy. Medium firm mattress offers a perfectly balanced firmness with multiple support layers that evenly distribute pressure.
- 【SUPPORT & DECOMPRESSION】DEHIJU 12 inch King size mattress with upgraded independent pocket springs, combined with cooling gel memory foam, effectively eliminate joint discomfort, relieve stress and reduce insomnia, providing you with a comfortable and peaceful sleep experience.
- 【ISOLATED MOTION】Mattress independent pocket spring design to ensure that your weight is evenly distributed from head to toe, and has good shock absorption and noise absorption, effectively avoiding interference between the movement of partners, allowing you to sleep deeply and comfortably all night long.
- 【COOL AND BREATHABLE】This King mattress is designed with high-density open-cell gel memory foam that adapts to your weight and temperature to dissipate excess heat, cool and breathable, so you can maintain the optimal sleep temperature without overheating.
CA$369.99
5
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Zinus

Zinus King Mattress - 12 Inch Green Tea Cooling Gel Memory Foam Mattress, Pressure Relief, for Cool Sleep, CertiPUR-US Certified Foam, Mattress in a Box, 10-Year Warranty, King Size

Zinus

CA$420.00

More Details
Main highlights
- WORRY-FREE WARRANTY – A 10-year limited warranty is included with the mattress; please allow 24–72 hours for your mattress to expand to its original shape
- REJUVENATING SUPPORT – Pressure-relieving memory foam conforms to the shape of your body to enhance circulation and decrease stress on your joints, and is infused with cooling gel for ultimate temperature regulation
- COOLER SLEEP AND A CLEANER PLANET – Topped with soothing gel memory foam, this mattress is designed to help keep you cool and comfortable throughout the night, and ships in a new smaller box to support a reduced carbon footprint
- CERTIFIED SAFE MATERIALS – Crafted from high-quality CertiPUR-US certified foam and wrapped with an OEKO-TEX certified mattress cover all produced without the use of harmful chemicals for safer, healthier sleep
- ALL NIGHT FRESHNESS - The all-natural green tea and purified charcoal infusions work together to help keep your mattress fresh for many nights to come
CA$420.00

5 Best Mattresses King Sizes of 2026

BedStory Medium Firm King Mattress 12 Inch, Deep Sleep Hybrid Mattress with Extra Lumbar Support, King Size Bed in a Box for Spine Alignment ＆ Pressure Relief, CertiPUR-US Certified, 365-Night Trial

BedStory King Mattress Medium Firm, 12 Inch Hybrid Matelas with Individual Coils, Mattress in a Box for Extra Lumbar Support ＆ Motion-isolation, Fiberglass-Free, CertiPUR-US Certified, 365-Night Trial

Zinus King Mattress - 10 Inch Green Tea Cooling Gel Memory Foam Mattress, Pressure Relief, for Cool Sleep, CertiPUR-US Certified Foam, Mattress in a Box, 10-Year Warranty, King Size

King Mattress, 12 Inch Memory Foam & Pocket Spring Hybrid Mattress, Certified Foam, Mattress in a Box, King Size

Zinus King Mattress - 12 Inch Green Tea Cooling Gel Memory Foam Mattress, Pressure Relief, for Cool Sleep, CertiPUR-US Certified Foam, Mattress in a Box, 10-Year Warranty, King Size

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