The standard size of student dormitory bed is w1980mm * d900mm * h1750mm (length x width x height). The dormitory space is limited, so the area is limited. Scientists' research shows that people who sleep in narrow beds turn over more times than those who sleep in wide beds, so they naturally can't sleep. It is also found that the bed width is 500mm when people are going to sleep. Because they need to turn over frequently after sleeping, the relationship between sleep depth and bed width is observed through brain waves, and it is found that the minimum limit of bed width should be 700 mm. If it is less than this width, the depth of sleep will be obviously reduced, which will affect the quality of sleep and make people unable to enter the sleep state. The length of 1980MM can also meet the height requirements of most college students, and the height of 1750MM can ensure that students in bunk beds have enough activity space. Therefore, the standard dimensions of student dormitory beds are 1980MM, 900MM wide and 1750MM high.