What are the general sizes of beds?

Generally, bed sizes can be divided into single beds, double beds, triple beds and quadruple beds. In different countries and regions, bed sizes also vary. Common sizes include:

1. Single bed: 2.0m*1.0m, 2.2m*1.2m;

2. Double bed: 1.5m*2.0m, 1.8m*2.0m, 2.0 m*2.0m;

3. Three-person bed: 1.5m*2.2m, 1.8m*2.2m, 2.0m*2.2m;

4. Four-person bed: 2.2m meters*2.2 meters, 2.4 meters*2.2 meters, 2.6 meters*2.2 meters, 2.8 meters*2.2 meters;

In addition, there are also some small-sized beds, such as "small single beds" about 1.2 meters*2.0 meters "Human bed" etc.