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Mattress size guide

Choosing a size is step number one when shopping for a new mattress. And to make sure you’re comfortable at night, there are a few basic guidelines to look for when finding the perfect size.

You should ideally have about 10cm between your feet and the bottom of the mattress when lying flat on your back, with your head on the pillow. And when it comes to width, you should be able to slide both hands under the pillow when lying on your front, and not have you elbow reach the edge of the bed.

Standard mattress sizes

Standard single

Feet & Inches
3’ x 6’3”

Inches
36” x 75”

Centimetres
90 x 190

Standard double

Feet & Inches
4’6” x 6’3”

Inches
54” x 75”

Centimetres
135 x 190

Standard king

Feet & Inches
5’ x 6’6”

Inches
60” x 78”

Centimetres
150 x 200

Super king

Feet & Inches
6’ x 6’6”

Inches
71” x 78”

Centimetres
180 x 200

European mattress size guide

IKEA/European single

Feet & Inches
3’ x 6’6”

Inches
36” x 78”

Centimetres
90 x 200

IKEA/European double

Feet & Inches
4’7” x 6’6”

Inches
55” x 78”

Centimetres
140 x 200

IKEA/European king

Feet & Inches
5’3" x 6’6”

Inches
63” x 78”

Centimetres
160 x 200

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