A small double mattress is a great option for single sleepers who want more space than a single bed, or for couples who have limited space in their bedroom. A small double mattress measures 120 x 190 cm (4’ x 6’3"), which is 15 cm (6") narrower than a standard double bed but the same length. A small double mattress can fit in most narrow bedrooms and can provide more comfort and support than a single bed. British Bed Store features a range of small double mattresses in various materials and firmness levels, from natural fillings to reflex foam. You can also choose from different colours and fabrics to match your taste and theme.