A kind of beddo,Comprising an at least bedstead,One driving source and an air bag,Wherein there is the bedstead fixing seat and a sliding seat to be pivotally connected the what fixing seat,The fixing seat has a first surface towards the sliding seat,The sliding seat has a second surface towards the fixing seat,The sliding seat can be swung with respect between one bonding position of fixing seat what and a deployed position； The driving source sets the what bedstead,To drive the sliding seat to swing with respect to the fixing seat； The air bag set the what first surface or second surface and have an aperture,And one acoustical generator set the what aperture. If have between foreign matter or the human body mounting board what fixing seat and sliding seat, which can suffer oppression and issue the sound, as an alarming device. Thereby, the safety in beddo use is substantially improved.一種電動床，包含至少一床架、一驅動源與一氣囊，其中該床架具有一固定座及一活動座樞接於該固定座，該固定座具有一面向該活動座之第一表面，該活動座具有一面向該固定座之第二表面，該活動座可相對該固定座於一貼合位置及一張開位置間擺動；該驅動源設於該床架，用以驅動該活動座相對該固定座擺動；該氣囊設於該第一表面或第二表面且具有一開孔、及一發聲器設於該開孔。若有異物或人體夾卡於該固定座與活動座之間時，該氣囊可受壓迫而發出聲響，作為一警示裝置。藉此，大幅提升電動床使用上的安全性。
