Problem to be solved: to provide a posture changing device for facilitating exchange of the state in which the caregiver is sleeping.Attitude changing device 1 isLying on the back of the user is placed at the bottom of the userWhen the air is injectedA first expansion part 11 which expands at least a portion of the buttocks to change the posture of the user andWhen the air is injectedA second expansion portion 13 which expands to support the user whose posture has been changed in accordance with the expansion of the first expansion partAn air injection path 20 is provided for individually injecting air into the first to second expansion portions.Diagram
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