This study clarifies the present dwelling style of AN-BANG and KOSIL and its changes based on a research about the recent movement of using more beds in the AN-BANG and its reasons in urban apartments in Korea. The results of survey are as follows: 1) 35% of our respondents use Beds and 64% use Futons(mattress and quilts). But younger residents use Beds more than Futons; besides, many of the young Futon users want to change to beds, so there will be more Bed users in AN-BANG. 2) The high efficiency of Bed and troublesome Futon-making, although not longing for Western life style, cause them to prefer Beds. 3) KOSIL is generally used as a living room. Using Beds in AN-BANG leads to a great tendency of regarding AN-BANG as a private space and KOSIL as a public space