Best King Mattresses UK
Updated July 2025
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Best King Mattresses UK
2025 Buyer's GuideUpdated July 2025
1
45% Off + Extra 2% Savings
- Sizes: Single, Double, King, Super King
- Materials: Hybrid memory foam and innerspring coils
- Firmness: Medium luxury firm
- Delivery: Free named day delivery, ships in 2 days
- Trial Period: 365-night in-home trial
- Warranty: Everlong Warranty™
- Financing Options: DivideBuy
- Made in the UK: Yes
1
170 people chose DreamCloud UK this week!
45% Off + Extra 2% Savings
- Sizes: Single, Double, King, Super King
- Materials: Hybrid memory foam and innerspring coils
- Firmness: Medium luxury firm
- Delivery: Free named day delivery, ships in 2 days
- Trial Period: 365-night in-home trial
- Warranty: Everlong Warranty™
- Financing Options: DivideBuy
- Made in the UK: Yes
2
Up to 20% Off Select Mattresses
- Sizes: Single, Small Double, Double, King
- Materials: Cooling graphite-infused foam with microsprings
- Firmness: Medium firm
- Delivery: Free delivery & mattress removal
- Trial Period: 200-night in home trial
- Warranty: 10 year guarantee
- Financing Options: DivideBuy
- Made in the UK: Yes
2
Up to 20% Off Select Mattresses
- Sizes: Single, Small Double, Double, King
- Materials: Cooling graphite-infused foam with microsprings
- Firmness: Medium firm
- Delivery: Free delivery & mattress removal
- Trial Period: 200-night in home trial
- Warranty: 10 year guarantee
- Financing Options: DivideBuy
- Made in the UK: Yes
3
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44% Off + Extra 2% Savings
- Sizes: Single, Small Double, Double, King, Super King
- Materials: Gel-inflused memory foam with cooling cover
- Firmness: Medium
- Delivery: In stock, free named day delivery & returns, ships in 1-3 business days
- Trial Period: 365-night in-home trial
- Warranty: Nectar Forever Warranty™
- Financing Options: DivideBuy
- Made in the UK: No
3
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44% Off + Extra 2% Savings
- Sizes: Single, Small Double, Double, King, Super King
- Materials: Gel-inflused memory foam with cooling cover
- Firmness: Medium
- Delivery: In stock, free named day delivery & returns, ships in 1-3 business days
- Trial Period: 365-night in-home trial
- Warranty: Nectar Forever Warranty™
- Financing Options: DivideBuy
- Made in the UK: No
4
Up to £100 Off Select Mattresses
- Sizes: Single, small double, double, long small double,long double, king, super king, euro-king
- Materials: Perfect balance of comfort and support, relaxing pressure points, providing vital support
- Firmness: Soft, medium, medium with springs, firm
- Delivery: Free mainland UK delivery
- Trial Period: 100-night in-home trial
- Warranty: Up to 15 years
- Financing Options: Novuna
- Made in the UK: No
4
Up to £100 Off Select Mattresses
- Sizes: Single, small double, double, long small double,long double, king, super king, euro-king
- Materials: Perfect balance of comfort and support, relaxing pressure points, providing vital support
- Firmness: Soft, medium, medium with springs, firm
- Delivery: Free mainland UK delivery
- Trial Period: 100-night in-home trial
- Warranty: Up to 15 years
- Financing Options: Novuna
- Made in the UK: No
5
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Up to 20% Off
- Sizes: Single, Double, King, Super King
- Materials: Five layers of cloudlike comfort with one layer of pocketed springs for maximum support and cooling
- Firmness: Medium firm
- Delivery: Free delivery and returns
- Trial Period: 365-night in-home trial
- Warranty: 10-year warranty
- Financing Options: DivideBuy
- Made in the UK: Yes
5
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Up to 20% Off
- Sizes: Single, Double, King, Super King
- Materials: Five layers of cloudlike comfort with one layer of pocketed springs for maximum support and cooling
- Firmness: Medium firm
- Delivery: Free delivery and returns
- Trial Period: 365-night in-home trial
- Warranty: 10-year warranty
- Financing Options: DivideBuy
- Made in the UK: Yes
6
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Extra 20% Off, code EXTRA20
- Sizes: Single, double, king, super king
- Materials: 1,000 individually wrapped pocket springs, soft breathable cover, high density support foam
- Firmness: Soft/medium, medium, medium/firm
- Delivery: Free delivery and set-up
- Trial Period: 100-night in-home trial
- Warranty: Up to 5-year guarantee
- Financing Options: DivideBuy, Clearpay, Klarna
- Made in the UK: Yes
6
Extra 20% Off, code EXTRA20
- Sizes: Single, double, king, super king
- Materials: 1,000 individually wrapped pocket springs, soft breathable cover, high density support foam
- Firmness: Soft/medium, medium, medium/firm
- Delivery: Free delivery and set-up
- Trial Period: 100-night in-home trial
- Warranty: Up to 5-year guarantee
- Financing Options: DivideBuy, Clearpay, Klarna
- Made in the UK: Yes
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8
Up to 60% Off Mattresses
- Sizes: European, small single, single, small double, double, king size, super king
- Materials: Pressure-relieving memory foam, supportive pocket spring, and natural latex options
- Firmness: Soft-medium, medium, medium-firm, firm, extra firm
- Delivery: Free delivery
- Trial Period: 60-night in-home trial
- Warranty: Up to 20-year warranty
- Financing Options: Klarna
- Made in the UK: No
8
Up to 60% Off Mattresses
- Sizes: European, small single, single, small double, double, king size, super king
- Materials: Pressure-relieving memory foam, supportive pocket spring, and natural latex options
- Firmness: Soft-medium, medium, medium-firm, firm, extra firm
- Delivery: Free delivery
- Trial Period: 60-night in-home trial
- Warranty: Up to 20-year warranty
- Financing Options: Klarna
- Made in the UK: No
9
Save 20% When You Buy 3 or More Items
- Sizes: Single, double, king, super king
- Materials: Eco-friendly organic natural latex, organic cotton, and sheep wool
- Firmness: Medium-firm
- Delivery: Free delivery and returns
- Trial Period: 101-night at-home trial
- Warranty: 5-year warranty
- Financing Options: Klarna
- Made in the UK: No
9
Save 20% When You Buy 3 or More Items
- Sizes: Single, double, king, super king
- Materials: Eco-friendly organic natural latex, organic cotton, and sheep wool
- Firmness: Medium-firm
- Delivery: Free delivery and returns
- Trial Period: 101-night at-home trial
- Warranty: 5-year warranty
- Financing Options: Klarna
- Made in the UK: No
10
Up to 55% Off, code SAVE55
- Sizes: Single, Double, Euro Double, King, Euro King, Super King
- Materials: HD proprietary foam with cooling airflow system and Tencel cover
- Firmness: Medium firm
- Delivery: Free delivery and returns
- Trial Period: 30-day trial period
- Warranty: 10 year warranty
- Financing Options: Not offered
- Made in the UK: No
10
Up to 55% Off, code SAVE55
- Sizes: Single, Double, Euro Double, King, Euro King, Super King
- Materials: HD proprietary foam with cooling airflow system and Tencel cover
- Firmness: Medium firm
- Delivery: Free delivery and returns
- Trial Period: 30-day trial period
- Warranty: 10 year warranty
- Financing Options: Not offered
- Made in the UK: No
Our Top Choice
1
45% Off + Extra 2% Savings
- Sizes: Single, Double, King, Super King
- Materials: Hybrid memory foam and innerspring coils
- Firmness: Medium luxury firm
- Delivery: Free named day delivery, ships in 2 days
- Trial Period: 365-night in-home trial
- Warranty: Everlong Warranty™
- Financing Options: DivideBuy
- Made in the UK: Yes
1
170 people chose DreamCloud UK this week!
45% Off + Extra 2% Savings
- Sizes: Single, Double, King, Super King
- Materials: Hybrid memory foam and innerspring coils
- Firmness: Medium luxury firm
- Delivery: Free named day delivery, ships in 2 days
- Trial Period: 365-night in-home trial
- Warranty: Everlong Warranty™
- Financing Options: DivideBuy
- Made in the UK: Yes
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