An object of the present invention is to provide a bed device that have a structure that can reduce the burden on caregivers. SOLUTION: One aspect of the sleeper device of the present invention has a support pedestal main body (12a) and an accessory mounting portion (30) to which the accessory (B) can be detachably attached, and the accessory mounting. The portion (30) is movably attached to the support gantry body (12a) between the first position (P11) and the second position closer to the support gantry body (12a) than the first position (P11). In the first state (C11) in which the accessory (B) is attached to the accessory mounting portion (30), the position of the accessory mounting portion (30) is maintained at the first position (P11), and the accessory mounting is performed. In the second state in which the accessory (B) is removed from the portion (30), the accessory mounting portion (30) moves from the first position (P11) to the second position. [Selection diagram] Fig. 4【課題】介護者の負担を軽減できる構造を有する寝台装置を提供する。【解決手段】本発明の寝台装置の一つの態様は、支持架台本体（１２ａ）と、付属品（Ｂ）が着脱自在に取り付けられる付属品取付け部（３０）と、を有し、付属品取付け部（３０）は、第１位置（Ｐ１１）と、第１位置（Ｐ１１）よりも支持架台本体（１２ａ）に近い第２位置と、の間で移動可能に支持架台本体（１２ａ）に取り付けられ、付属品取付け部（３０）に付属品（Ｂ）が取り付けられた第１状態（Ｃ１１）において、付属品取付け部（３０）の位置は、第１位置（Ｐ１１）に維持され、付属品取付け部（３０）から付属品（Ｂ）が取り外された第２状態において、付属品取付け部（３０）は、第１位置（Ｐ１１）から第２位置に移動することを特徴とする。【選択図】図４
