Whether you drift off in Los Angeles or it's lights out in London, people in the US and UK look for similar things when choosing a bed: a comfortable sleep surface, decent pressure relief, and something that fits your bed frame. However, while sleepers around the world have a lot in common, bed size is not one of them. Confusingly, the UK and US use different mattress size standards.
It's worth making the effort to figure out dimensions, because buying the wrong size mattress is a nightmare. For a start, you sheets won't fit. More importantly, your mattress will either be too small for the bed frame, or worse – hanging over the edges. Even the best mattress can't support you if the ends are on the floor.
