5 Best The Sleep Company King Size Mattresses With 10-Year Warranty on Amazon (October 2026)
Dealing with sleep issues and looking for the best mattress that can provide you a restful surface to sleep on? Explore these 5 “The Sleep Company” king size mattresses with a 10 year warranty for your bedroom.
Sleep is one of those understated luxuries that is very much required to lead a healthy life and if you are dealing with any sleep related issues or back pain then having the right mattress is one of the most important factors that need to be considered in the very first place. We have explored 5 best “The Sleep Company King Size Mattresses” that are available on Amazon with a long 10 years of warranty in different options like medium-firm GRID models, a firm orthopedic mattress with 7 zone support and a hybrid option with pocketed springs. Always check their materials, cooling features, construction and all important parameters to understand which mattress may suit your king size bed, preferences and most importantly budget before ordering online.
Every product we recommend is carefully selected through a thoughtful blend of primary research and in-depth analysis of trusted sources.
King Size
The Sleep Company Orthopedic GRID Mattress
This Sleep Company Orthopedic GRID Mattress is a 5-inch thick option for people who like a medium-firm feel while sleeping. It uses their patented SmartGRID technology along with Ortho Balance Foam to fit your body shape and it cushions areas where pressure builds up while also supporting your back. This mattress helps keep your spine aligned in a comfortable position while you sleep and its orthopedic support is approved by doctors from the All India Health Association (AIHA). If you tend to get warm at night this mattress has more than 2,500 air channels to help air move through it and the cover is made of premium 550 GSM cotton viscose which's soft and breathable keeping the sleeping surface feel nice and cool. The mattress has also been tested for over 30,000 sleep hours to check how well it holds up over time.
Why Consider This?
Its medium firmness might be just right for people who want support but don’t want to go with the brand’s extra-firm version.
What Customers Say on Amazon?
Mattress's body support, cooling properties and perceived value for money is highly appreciated but opinions about firmness vary.
Specifications:
BrandThe Sleep Company
Size78x72x5
Product Dimensions198L x 183W x 13Th Centimeters
Item Weight27.99 Kilograms
Item Firmness DescriptionMedium
Top StyleSmooth Top
Cover MaterialCotton Viscose
Fill MaterialSmartGRID + Ortho Balance Foam
Special FeatureOrthopedic
ColourWhite
Reasons to buy:
✓High Quality
Reason to avoid:
✗Average Firmness
01
King Size
The Sleep Company Orthopedic GRID Mattress
This 8-inch version of The Sleep Company Orthopedic GRID Mattress uses the technology and medium-firm feel like the 5-inch model. It combines the SmartGRID technology and Ortho Balance Foam to provide a mix of cushioning and support where SmartGRID is made to fit the body and still support the back. It has more than 2,500 air channels to let air move through the mattress and the 550 GSM cotton viscose cover is breathable and comfortable making this option great for people who care about airflow and support when picking a mattress. The mattress is marketed with a smooth top and medium firmness with a 10 year warranty but it is important to read the terms before considering.
Why Consider This?
This is an Orthopedic GRID Mattress that has a medium firm feel so people who like a distinctly hard surface may want to compare the firmer SmartGRID Orthopedic Pro model as well.
What Customers Say on Amazon?
Feedback highlights body support, cooling and value for money is brilliant with this product. But if you are sensitive to mattress firmness, compare the available thicknesses and review the return conditions before considering.
Specifications:
BrandThe Sleep Company
Size78x72x8
Product Dimensions198L x 183W x 20Th Centimeters
Item Weight31.39 Kilograms
Item Firmness DescriptionMedium
Top StyleSmooth Top
Cover MaterialCotton Viscose
Fill MaterialSmartGRID + Ortho Balance Foam
Reasons to buy:
✓Value for Money deal
Reason to avoid:
✗Might have fit issues
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King Size
The Sleep Company SmartGRID Ortho Mattress
This Sleep Company SmartGRID Ortho Mattress is a firm, AIHA certified orthopedic mattress that has Japanese patented SmartGRID technology designed to balance comfort and firm support while adjusting to different body shapes. It has SmartGRID structure and has more than 2,500 air channels to help with airflow helpful for people for whom ventilation is a part of their sleeping comfort. The 550 GSM cotton viscose cover is breathable and it has 2 sides in which the medium-firm side is meant to spread weight and provide support while fitting the body's shape. The brand also says the design helps reduce disturbances from tossing and turning though results can be different for each person.
Why Consider This?
This model is for those people who are looking for a medium-firm mattress with a cotton cover for easy ventilation.
What Customers Say on Amazon?
This is a comfortable and good value for money mattress in which several comments mention back support and reduced aches, while others appreciate its medium firmness and ability to maintain support through the night.
Specifications:
BrandThe Sleep Company
Size78x72
Product Dimension 198.1L x 182.9W x 15.2Th Centimeters
Item Weight47 Kilograms
Item Firmness DescriptionMedium Firm
Top StyleTight Top
Cover MaterialCotton
Number of Layers2
Fill MaterialFoam
Reasons to buy:
✓Good Back Support and High Durability
Reason to avoid:
✗No Cons Reported
03
King Size
The Sleep Company SmartGRID Orthopedic Pro
The Sleep Company SmartGRID Orthopedic Pro is a king size mattress made for people who like a mattress with extra targeted support. It has an extra‑firm feel that uses patented SmartGRID technology with 7 zones for body support for pressure relief along with that it also has more than 2,500 air channels to help airflow. This mattress is certified by the All India Health Association (AIHA) so that you can consider it as an option for your bedroom . Unlike the medium‑firm models the SmartGRID Orthopedic Pro is specifically positioned as a firm in which there are 2 layer construction . It has a cotton cover and quilted top to give a comfortable surface that helps reduce morning stiffness.
Why Consider This?
This mattress is worth considering if you prefer a firm feel but the firmness also depends on sleeping position, body weight and personal comfort preferences.
What Customers Say on Amazon?
Customers say that the mattress is comfortable and provides useful back support as some appreciate its firmness and value for long-term use while others mention better sleep duration and suitability for different sleeping positions.
Specifications:
Brand The Sleep Company
Size78x72x8
Product Dimensions198.1L x 182.9W x 20.3Th Centimeters
Item Weight43.8 Kilograms
Item Firmness DescriptionExtra Firm
Top StyleTight Top
Cover MaterialCotton
Number of Layers2
Fill MaterialSmart GRID
Reasons to buy:
✓Suitable for All Ages
Reason to avoid:
✗Might have fit issues
04
King Size
The Sleep Company SmartGRID Ortho Hybrid Mattress
The Sleep Company SmartGRID Ortho Hybrid Mattress combines SmartGRID technology with pocketed springs in a medium-firm feel for people who want a combination of support and a more responsive, spring-based feel. Its SmartGRID adapts to body shape and keeps softness and support. It has more than 2,500 air channels that help air flow along with AIHA certification. The mattress hybrid construction has 3 layers and has springs to add bounce and support. The outer cover is made with a polyester blend and has 550 GSM melange fabric made from hypoallergenic materials.
Why Consider This?
It weighs 57 kilograms, which is heaviest in the list, so people who do not move frequently and like medium firm feel can consider this “The Sleep Company mattress”.
What Customers Say on Amazon?
There are majorly positive feedbacks without negative criticism about this model. According to various people it is one of the best mattresses in the market that provide excellent comfort and support for back pain.
Specifications:
BrandThe Sleep Company
Size78x72x8
Product Dimensions198.1L x 182.9W x 20.3Th Centimeters
Item Weight57 Kilograms
Item Firmness DescriptionMedium Firm
Top StyleTight Top
Cover Material Polyester Blend
Number of Layers3
Fill Materialmemory foam
Special FeatureHypoallergenic, air vent, plush
Reasons to buy:
✓Extremely Comfortable while sleeping
Reason to avoid:
✗No Major Cons reported
05
The Sleep Company King Size Mattresses for Your Home
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Faq's
How do I know whether a 78 x 72-inch mattress will fit my bed?
Take the length and width of your bed frame instead of just using the advertised size. Then compare those numbers to the size and add the thickness of the mattress you want.
Should I choose a firm or extra-firm mattress?
Pick the firmness that feels right for you, your weight and how you sleep. A medium-firm mattress gives you both cushion and support while an extra-firm mattress feels harder.
What is the difference between a GRID mattress and a hybrid mattress?
GRID mattresses use SmartGRID with foam whereas the hybrid mattress mixes SmartGRID foam with individual springs. The hybrid may bounce differently so look at how each's built and how firm it feels before making a choice.
Do air channels mean a mattress will always stay cool?
No air channels help air move but they do not guarantee that the mattress will stay cool.
