UK Sizes.
Please note that these are mattress sizes. The beds themselves will typically be a little larger and require more floor space.
2ft6 Small Single
75cm x 190cm / 2'6" x 6'3"
Typically found where space is at a real premium, the small single size mattress is slim enough to fit into very tight spaces and still gives a sensible sleeping surface for one.
3ft Single
90cm x 190cm / 3' x 6'3"
This is the UK single mattress size, and the size people mean when they talk about a standard single mattress.
4ft Small double
120cm x 190cm / 4' x 6'3"
Narrower than a standard double, so-called 'Small Double' mattresses are ideal for occasional use (such as for guest bedrooms) - this provides just enough room for two.
4ft6 Double
135cm x 190cm / 4'6 x 6'3"
This is the UK double mattress size
5ft King
150cm x 200cm / 5' x 6'6"
King size mattresses are wider and longer than standard double mattresses - and although they are only 6 inches wider, this can make a huge difference to how much space you have when sharing a bed.
6ft Superking
180cm x 200cm / 6' x 6'6"
Superking mattresses are a whole foot wider than king size - and they provide a wonderfully large sleeping surface. Not everyone can fit a bed of this size into their bedroom - but if you can, it is worth it!
European Sizes.
Euro Single
90cm x 200cm / 3' x 6'6"
The same width as a standard UK single size, but slightly longer. If you bought a single bed from a European manufacturer like Ikea, you will probably need this size!
Euro Double
140cm x 200cm / 4'9 x 6'6"
Slightly wider and slightly longer than a standard UK double mattress. If you bought a double bed from a European manufacturer like Ikea, you will probably need this size.
Euro King
160cm x 200cm / 5'3 x 6'6"
The same length as a standard UK king size, but slightly wider. If you bought a king size bed from a European manufacturer like Ikea, you will probably need this size.