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Small Double Mattresses

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Casper Original Mattress, Small Double

9.3
out of 10
Read reviews
Free Delivery Medium 24cm deep 10 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £412.50
Also available in: Single, European Single, Double, European Double, King Size, European King Size, Superking
Type: Memory Foam, Rolled Up, Single-Sided Mattress
Firmness: 3 Medium
FREE Next Day Delivery or choose a date
9.3
out of 10
Read reviews
Now 25% off
£412.50
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I'm in the SALE

Sealy Posturepedic Aspen Mattress, Small Double

8.9
out of 10
Read reviews
Free Delivery Firm 27cm deep 5 Year Warranty
Next Day
Small Double 4' x 6'3"
Now only £208.73
Also available in: Single, Double, King Size, Superking
Type: Orthopaedic, Standard Sprung, Single-Sided Mattress
Firmness: 5 Firm
FREE Next Day Delivery or choose a date
8.9
out of 10
Read reviews
Now 60% off
£208.73
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I'm in the SALE

Casper Hybrid Mattress, Small Double

9.3
out of 10
Read reviews
Free Delivery Medium 24cm deep 10 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £487.50
Also available in: Single, European Single, Double, European Double, King Size, European King Size, Superking
Type: Memory Foam, Rolled Up, Single-Sided Mattress
Firmness: 3 Medium
FREE Next Day Delivery or choose a date
9.3
out of 10
Read reviews
Now 25% off
£487.50
view details
I'm in the SALE

Casper Essential Mattress, Small Double

9.0
out of 10
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Free Delivery Medium to Firm 18cm deep 10 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £281.25
Also available in: Single, European Single, Double, European Double, King Size, European King Size, Superking
Type: Reflex Foam, Rolled Up, Single-Sided Mattress
Firmness: 4 Medium to Firm
FREE Next Day Delivery or choose a date
9.0
out of 10
Read reviews
Now 25% off
£281.25
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I'm in the SALE

Simba Hybrid Essential 1500 Pocket Mattress, Small Double

8.7
out of 10
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Free Delivery Medium to Firm 20cm deep 10 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £382.50
Also available in: Single, Double, King Size
Type: Memory Foam, Pocket Sprung, Reflex Foam
Firmness: 4 Medium to Firm
FREE Next Day Delivery or choose a date
8.7
out of 10
Read reviews
Now 25% off
£382.50
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I'm in the SALE

Sealy Posturepedic Pearl Luxury Pillow Top Mattress, Small Double

9.1
out of 10
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Free Delivery Medium 29cm deep 5 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £379.55
Also available in: Single, Double, King Size, Superking, Superking Zip and Link
Type: Standard Sprung, Single-Sided Mattress, Hypoallergenic
Firmness: 3 Medium
FREE Next Day Delivery or choose a date
9.1
out of 10
Read reviews
Now 50% off
£379.55
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I'm in the SALE

Nectar Memory Foam Mattress, Small Double

9.3
out of 10
Read reviews
Free Delivery Medium to Firm 25cm deep 10 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £449.00
Also available in: Single, Double, King Size, Superking
Type: Memory Foam, Reflex Foam, Rolled Up
Firmness: 4 Medium to Firm
FREE Next Day Delivery or choose a date
9.3
out of 10
Read reviews
Now 15% off
£449.00
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I'm in the SALE

Silentnight Moretto Miracoil Mattress, Small Double

8.7
out of 10
Read reviews
Free Delivery Medium to Firm 25cm deep 5 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £241.69
Also available in: Single, Double, King Size, Superking
Type: Standard Sprung, Single-Sided Mattress
Firmness: 4 Medium to Firm
FREE Next Day Delivery or choose a date
8.7
out of 10
Read reviews
Now 35% off
£241.69
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I'm in the SALE

Classic Gold 1000 Pocket Mattress, Small Double

8.9
out of 10
Read reviews
Free Delivery Medium 29cm deep 1 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £208.73
Also available in: Small Single, Single, Double, King Size, Superking
Type: Pocket Sprung, Double-Sided Mattress
Firmness: 3 Medium
FREE Next Day Delivery or choose a date
8.9
out of 10
Read reviews
Now 40% off
£208.73
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I'm in the SALE

Sleepeezee Memory Comfort 2000 Pocket Mattress, Small Double

8.8
out of 10
Read reviews
Free Delivery Medium 24.5cm deep 5 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £417.51
Also available in: Single, Double, King Size, Superking
Type: Memory Foam, Pocket Sprung, Single-Sided Mattress
Firmness: 3 Medium
FREE Next Day Delivery or choose a date
8.8
out of 10
Read reviews
Now 40% off
£417.51
view details
I'm in the SALE

Sealy Activsleep Ortho Posture Firm Support Mattress, Small Double

9.0
out of 10
Read reviews
Free Delivery Firm 24cm deep 5 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £284.65
Also available in: Single, Double, King Size, Superking
Type: Orthopaedic, Standard Sprung, Single-Sided Mattress
Firmness: 5 Firm
FREE Next Day Delivery or choose a date
9.0
out of 10
Read reviews
Now 25% off
£284.65
view details
I'm in the SALE

Sealy Posturepedic Pearl Memory Mattress, Small Double

9.1
out of 10
Read reviews
Free Delivery Medium to Firm 28cm deep 5 Year Guarantee
Next Day
Small Double 4' x 6'3"
Now only £360.57
Also available in: Single, Double, King Size, Superking, Superking Zip and Link
Type: Memory Foam, Orthopaedic, Standard Sprung
Firmness: 4 Medium to Firm
FREE Next Day Delivery or choose a date
9.1
out of 10
Read reviews
Now 35% off
£360.57
1-12 of 124 items
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What size is a small double mattress?

A small double mattress measures 120cm wide and 190cm long. In imperial measurements, that's 4 feet wide, 6 feet and 3 inches long (4' x 6'3"). Small double mattresses are the same length as double mattresses, but approximately 15cm (6 inches) narrower.

Can a small double mattress fit two adults?

Yes, a small double mattress can fit two adults - but it will feel very cosy. We recommend double or king size mattresses instead, which will give you both enough space to sleep without disturbing each other. Small double mattresses are best for one adult, or occasional use by two adults. They're also a good option for smaller bedrooms.

Do you have small double mattress toppers?

Yes, we have a great selection of small double mattress toppers, including memory foam mattress toppers. They're a great way to give your existing mattress a new lease of life and provide a little extra comfort.

Can a small double mattress fit on a double bed?

Technically, a small double mattress can fit on a double bed - but we don't recommend this! This will create gaps in-between your mattress and bed, which could be a safety hazard. Placing your mattress on an unsuitable bed may also invalidate your warranty. The best option is to choose a small double bed with mattress as one complete bed and mattress set, to be sure of a good fit.

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