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Home/Beds/Mattress Size

Mattress Size

Find your new perfect mattress for those good night's sleep with Smiths City. At Smiths City, we understand the importance of a good night's sleep. That's why we offer a diverse range of mattresses designed to cater to unique needs. As a locally owned and operated business, we take great pride in helping you find the perfect mattress, ensuring that every night's rest is a rejuvenating experience.

Mattress Size
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    • Single Mattress
    • King Single Mattress
    • Double Mattress
    • Long Double Mattress
    • Queen Mattress
    • King Mattress
    • Super King Mattress
    • Californian King Mattress
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    • $100 - $500
    • $500 - $1,000
    • $1,000 - $5,000
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    • Foam Mattress
    • Sleepyhead
    • Tattersfield
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172 Products Available
Single Foam Mattress - 125mm
Single Foam Mattress - 125mm $125.00
SKU: 955799 | Supplier Code: 30001197 Quick View

Single foam mattress perfect for sleep-overs, unexpected guests, & camping.

Learn More
$125.00
Sleepyhead Matrix MKII Ultra Plush Queen Mattress
Sleepyhead
Sleepyhead Matrix MKII Ultra Plush Queen Mattress $6,999.00
SKU: 9070923 | Supplier Code: SCS06008QM Quick View

Introducing the latest in Sleepyhead technology, the Matrix Ultra Plush introduces our new Powercore support system.

Featuring Kevlar bands within the mattress at critical lumbar regions and a dual pocket spring design, Matrix Ultra provides enhanced postural support and alignment.

The addition of new Kulkote technology provides advanced temperature regulation for a more comfortable sleep.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Queen mattress only.

Learn More
$6,999.00
Sleepyhead Matrix MKII Medium King Mattress
Sleepyhead
Sleepyhead Matrix MKII Medium King Mattress $5,599.00
SKU: 9070898 | Supplier Code: SCS06002KM Quick View

The latest in Sleepyhead technology, the Matrix Medium features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for King mattress only.

Learn More
$5,599.00
Sleepyhead Matrix MKII Medium Queen Mattress
Sleepyhead
Sleepyhead Matrix MKII Medium Queen Mattress $4,599.00
SKU: 9070902 | Supplier Code: SCS06002QM Quick View

The latest in Sleepyhead technology, the Matrix Medium features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Queen mattress only.

Learn More
$4,599.00
Sleepyhead Matrix MKII Plush Queen Mattress
Sleepyhead
Sleepyhead Matrix MKII Plush Queen Mattress $5,199.00
SKU: 9070909 | Supplier Code: SCS06004QM Quick View

The latest in Sleepyhead technology, the Matrix Plush features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Queen mattress only.

Learn More
$5,199.00
Sleepyhead Matrix MKII Firm Queen Mattress
Sleepyhead
Sleepyhead Matrix MKII Firm Queen Mattress $4,399.00
SKU: 9070895 | Supplier Code: SCS06000QM Quick View

The latest in Sleepyhead technology, the Matrix Firm features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Queen mattress only.

Learn More
$4,399.00
Sleepyhead Matrix MKII Firm King Mattress
Sleepyhead
Sleepyhead Matrix MKII Firm King Mattress $5,199.00
SKU: 9070891 | Supplier Code: SCS06000KM Quick View

The latest in Sleepyhead technology, the Matrix Firm features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for King mattress only.

Learn More
$5,199.00
Sleepyhead Matrix MKII Firm Super King Mattress
Sleepyhead
Sleepyhead Matrix MKII Firm Super King Mattress $5,599.00
SKU: 9070896 | Supplier Code: SCS06000GM Quick View

The latest in Sleepyhead technology, the Matrix Firm features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Super King mattress only.

Learn More
$5,599.00
Sleepyhead Matrix MKII Medium Long Double Mattress
Sleepyhead
Sleepyhead Matrix MKII Medium Long Double Mattress $4,499.00
SKU: 9070900 | Supplier Code: SCS06002DM Quick View

The latest in Sleepyhead technology, the Matrix Medium features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Long Double mattress only.

Learn More
$4,499.00
Sleepyhead Matrix MKII Ultra Plush King Mattress
Sleepyhead
Sleepyhead Matrix MKII Ultra Plush King Mattress $8,199.00
SKU: 9070922 | Supplier Code: SCS06008KM Quick View

Introducing the latest in Sleepyhead technology, the Matrix Ultra Plush introduces our new Powercore support system.

Featuring Kevlar bands within the mattress at critical lumbar regions and a dual pocket spring design, Matrix Ultra provides enhanced postural support and alignment.

The addition of new Kulkote technology provides advanced temperature regulation for a more comfortable sleep.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for King matt only.

Learn More
$8,199.00
Sleepyhead Matrix MKII Ultra Medium King Mattress
Sleepyhead
Sleepyhead Matrix MKII Ultra Medium King Mattress $7,699.00
SKU: 9070912 | Supplier Code: SCS06006KM Quick View

Introducing the latest in Sleepyhead technology, the Matrix Ultra Medium introduces our new Powercore support system.

Featuring Kevlar bands within the mattress at critical lumbar regions and a dual pocket spring design, Matrix Ultra provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for King mattress only.

Learn More
$7,699.00
Sleepyhead Matrix MKII Ultra Plush Super King Mattress
Sleepyhead
Sleepyhead Matrix MKII Ultra Plush Super King Mattress $9,199.00
SKU: 9070921 | Supplier Code: SCS06008GM Quick View

Introducing the latest in Sleepyhead technology, the Matrix Ultra Plush introduces our new Powercore support system.

Featuring Kevlar bands within the mattress at critical lumbar regions and a dual pocket spring design, Matrix Ultra provides enhanced postural support and alignment.

The addition of new Kulkote technology provides advanced temperature regulation for a more comfortable sleep.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Super King mattress only.

Learn More
$9,199.00
Sleepyhead Matrix MKII Medium Super King Mattress
Sleepyhead
Sleepyhead Matrix MKII Medium Super King Mattress $5,999.00
SKU: 9070903 | Supplier Code: SCS06002GM Quick View

The latest in Sleepyhead technology, the Matrix Medium features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Super King mattress only.

Learn More
$5,999.00
Sleepyhead Matrix MKII Medium Californian King Mattress
Sleepyhead
Sleepyhead Matrix MKII Medium Californian King Mattress $6,599.00
SKU: 9070897 | Supplier Code: SCS06002CM Quick View

The latest in Sleepyhead technology, the Matrix Medium features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for California King mattress only.

Learn More
$6,599.00
Sleepyhead Matrix MKII Plush Super King Mattress
Sleepyhead
Sleepyhead Matrix MKII Plush Super King Mattress $6,599.00
SKU: 9070910 | Supplier Code: SCS06004GM Quick View

The latest in Sleepyhead technology, the Matrix Plush features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Super King mattress only.

Learn More
$6,599.00
Sleepyhead Matrix MKII Ultra Medium Queen Mattress
Sleepyhead
Sleepyhead Matrix MKII Ultra Medium Queen Mattress $6,599.00
SKU: 9070889 | Supplier Code: SCS06006QM Quick View

Introducing the latest in Sleepyhead technology, the Matrix Ultra Medium introduces our new Powercore support system.

Featuring Kevlar bands within the mattress at critical lumbar regions and a dual pocket spring design, Matrix Ultra provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Queen mattress only.

Learn More
$6,599.00
Sleepyhead Matrix MKII Plush King Mattress
Sleepyhead
Sleepyhead Matrix MKII Plush King Mattress $6,299.00
SKU: 9070905 | Supplier Code: SCS06004KM Quick View

The latest in Sleepyhead technology, the Matrix Plush features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for King mattress only.

Learn More
$6,299.00
Sleepyhead Matrix MKII Medium King Single Mattress
Sleepyhead
Sleepyhead Matrix MKII Medium King Single Mattress $3,699.00
SKU: 9070899 | Supplier Code: SCS06002JM Quick View

The latest in Sleepyhead technology, the Matrix Medium features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for King Single mattress only.

Learn More
$3,699.00
Sleepyhead Matrix MKII Medium Long Single Mattress
Sleepyhead
Sleepyhead Matrix MKII Medium Long Single Mattress $3,299.00
SKU: 9070901 | Supplier Code: SCS06002SM Quick View

The latest in Sleepyhead technology, the Matrix Medium features the Powerband support system.

Featuring Kevlar bands within the mattress at critical lumbar regions, Matrix provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Long Single mattress only.

Learn More
$3,299.00
Sleepyhead Matrix MKII Ultra Medium Super King Mattress
Sleepyhead
Sleepyhead Matrix MKII Ultra Medium Super King Mattress $8,299.00
SKU: 9070916 | Supplier Code: SCS06006GM Quick View

Introducing the latest in Sleepyhead technology, the Matrix Ultra Medium introduces our new Powercore support system.

Featuring Kevlar bands within the mattress at critical lumbar regions and a dual pocket spring design, Matrix Ultra provides enhanced postural support and alignment.

Fabric may vary

Please note: Image shows Queen size and is indicative only. Price is for Super King mattress only.

Learn More
$8,299.00
View All

Understanding Bed Sizes

When selecting a mattress, it's crucial to understand the different sizes available and how they can meet your specific needs. Here's a guide to help you choose the right mattress size

Bed Size

Dimensions (inches)

Dimensions (cm)

Description

Single

38 x 75

96.5 x 190.5

Ideal for children, single sleepers, or small spaces

King Single

38 x 80

96.5 x 203

Extra length for taller individuals, common in dorms

Double

54 x 75

137 x 190.5

Suitable for single adults, or couples who like to cuddle

Queen

60 x 80

152.5 x 203

Most popular size, ample space for couples

King

76 x 80

193 x 203

Offers maximum space, ideal for couples who want extra room

Super King

72 x 84

180 x 200

Extra length for taller individuals, slightly narrower than a King

California King

72 x 84

183 x 213

Even larger and longer than the Super King

FAQs About Bed Sizes

1. What is the difference between a Twin and a Twin XL mattress?

The primary difference is the length. A Twin mattress measures 38 x 75 inches (96.5 x 190.5 cm), while a Twin XL measures 38 x 80 inches (96.5 x 203 cm). The extra 5 inches in length makes the Twin XL more suitable for taller individuals.

2. Can two adults sleep comfortably on a Full mattress?

While a Full mattress can accommodate two adults, it may feel cramped. It's typically more suitable for single adults or as a spacious option for children and teenagers.

3. What is the most popular mattress size for couples?

The Queen mattress is the most popular choice for couples. It measures 60 x 80 inches (152.5 x 203 cm) and offers ample space for two people while fitting well in most bedrooms.

4. How much space do I need for a King mattress?

A King mattress measures 76 x 80 inches (193 x 203 cm). Ensure your bedroom is large enough to accommodate this size comfortably, allowing extra space for movement and other furniture. Ideally, your room should be at least 12 x 12 feet.

5. What is the difference between a King and a California King mattress?

The main difference is in the dimensions. A King mattress is wider, measuring 76 x 80 inches (193 x 203 cm), while a California King is longer and narrower, measuring 72 x 84 inches (183 x 213 cm). The California King is better suited for taller individuals who need extra legroom.