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5 Best Mattresses King Sizes of 2026

Last Updated - 2026/04/29

1
Best Choice

✖
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$479.99

More Details
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 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 queen 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 Double Size Hybrid Mattress, offering Upgraded Motion-isolation and more Comfort
CA$479.99
2
14% Off

✖
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.

KYSHANN
14% Off

KYSHANN King Mattress,14 Inch Memory Foam Individual Pocket Spring Mattresses,Motion Isolation,Edge Support,Zoned Pressure Relief,Fiberglass Free, Medium Firm,Mattress in A Box

KYSHANN

CA$429.98

CA$499.99
(14% Off)

More Details
Main highlights
- 【Warranty and Satisfaction Guarantee】 Our memory foam mattress comes with a 30-day replacement guarantee. However, you will only be eligible for a return after sleeping on it for two weeks, because you need time to get used to it. If you are still not satisfied after that, you can contact us to return it.
- 【The Best Softness and Support】Our king-size hybrid mattress combines the advantages of both worlds perfectly. It incorporates the traditional support of an innerspring mattress and the plush comfort of memory foam. The dual foam layers are meticulously designed to provide a perfect blend of softness and support.
- 【Independent Springs】 Our mattress is equipped with state-of-the-art independent springs, offering outstanding orthopedic support. The individually wrapped coils ensure that the pressure on your head, shoulders, waist, hips and legs is evenly distributed. With our mattress, you will obtain customized support where you need it. The springs work independently, closely conforming to the contours of your body to achieve maximum comfort and a peaceful sleep.
- 【Enhanced Comfort and Support】Experience a truly luxurious sleeping surface with our premium king-size mattress. The high-end knitted fabric provides outstanding comfort and breathability, ensuring a comfortable and relaxing night’s sleep. The independent pocket spring system is designed to relieve body pressure and offer balanced support. Each pocket spring works independently, minimizing any disturbances caused by the movements of your sleep partner or pets.
- 【Convenient Installation and Delivery】 We make it easy for you to receive and install your new mattress. This 14-inch memory foam king-size mattress is compressed, vacuum-sealed and then neatly rolled up in a box to ensure efficient delivery. It fits all kinds of bed frames, including those placed directly on the floor. It will fully expand within 48 to 72 hours, and then you can enjoy it to your heart’s content.
CA$429.98
CA$499.99 (14% Off)
3

✖
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

✖
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$412.97

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$412.97
5
Best Value
28% Off

✖
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.

KYSHANN
28% Off

KYSHANN King Mattress,12 Inch Memory Foam Individual Pocket Spring Mattresses,Motion Isolation,Edge Support,Zoned Pressure Relief,Fiberglass Free, Medium Firm,Mattress in A Box

KYSHANN

CA$359.99

CA$499.99
(28% Off)

More Details
Main highlights
- 【Warranty and Satisfaction Guarantee】 Our memory foam mattress comes with a 30-day replacement guarantee. However, you will only be eligible for a return after sleeping on it for two weeks, because you need time to get used to it. If you are still not satisfied after that, you can contact us to return it.
- 【The Best Softness and Support】Our king-size hybrid mattress combines the advantages of both worlds perfectly. It incorporates the traditional support of an innerspring mattress and the plush comfort of memory foam. The dual foam layers are meticulously designed to provide a perfect blend of softness and support.
- 【Independent Springs】 Our mattress is equipped with state-of-the-art independent springs, offering outstanding orthopedic support. The individually wrapped coils ensure that the pressure on your head, shoulders, waist, hips and legs is evenly distributed. With our mattress, you will obtain customized support where you need it. The springs work independently, closely conforming to the contours of your body to achieve maximum comfort and a peaceful sleep.
- 【Enhanced Comfort and Support】Experience a truly luxurious sleeping surface with our premium king-size mattress. The high-end knitted fabric provides outstanding comfort and breathability, ensuring a comfortable and relaxing night’s sleep. The independent pocket spring system is designed to relieve body pressure and offer balanced support. Each pocket spring works independently, minimizing any disturbances caused by the movements of your sleep partner or pets.
- 【Convenient Installation and Delivery】 We make it easy for you to receive and install your new mattress. This 12-inch memory foam king-size mattress is compressed, vacuum-sealed and then neatly rolled up in a box to ensure efficient delivery. It fits all kinds of bed frames, including those placed directly on the floor. It will fully expand within 48 to 72 hours, and then you can enjoy it to your heart’s content.
CA$359.99
CA$499.99 (28% Off)

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

KYSHANN King Mattress,14 Inch Memory Foam Individual Pocket Spring Mattresses,Motion Isolation,Edge Support,Zoned Pressure Relief,Fiberglass Free, Medium Firm,Mattress in A Box

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 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

KYSHANN King Mattress,12 Inch Memory Foam Individual Pocket Spring Mattresses,Motion Isolation,Edge Support,Zoned Pressure Relief,Fiberglass Free, Medium Firm,Mattress in A Box

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