90cm * 180cm;
102cm * 200cm;
120cm * 2 10cm;
85cm* 180cm .
The dormitory with extended information uses single beds, and the size of each dormitory bed is different. Generally 90CM* 190CM is the standard size, but the width is still very different, and there will be a width of 85 cm- 120 cm.
The length of dormitory beds is generally longer in the north than in the south, ranging from 180 cm to 200 cm. Dormitories generally use bunk beds, and the size of bunk beds is generally 180*90*200CM, that is to say, the width of the bed is 90CM, the length is 200CM, and the height is 180CM (the distance from the ground to the second bed). This is just a reference size, and the standards in many places are different.
Reference materials? Baidu encyclopedia university dormitory