The utility model relates to a bed bag device.The utility model comprises a bed bag body.Extending a package of covering around it to cover under a mattress,And a first elastic belt is arranged on the periphery of the cover to form a bed opening for the mattress to be sleeved；And several second elastic bands,They are respectively located at the lower edge of the corner of the cladding.Both ends of the second elastic belt are respectively fixed on both sides of the corner of the cladding.To be tied tightly to the corner of the mattress,By the combination of the above components,The bed cover is sleeved on the mattress from the bed cover opening of the bed package body.And the second elastic belt is clamped at the corner of the mattress.Covering the mattress with the covering bread,And the cover is pressed by the mattress.And the first elastic belt of the mattress must tightly hold the cover and be pressed under the periphery of the mattress to form a positioning.After stretching, the second elastic belts are tightly tied to the corner of the mattress.The whole bed package is tightly fixed and snug and comfortable to lie down.So as to prevent the folding or sliding of the bed package.It can keep the surface of mattress clean for a long time.It can be disassembled and cleaned easily.And reassemble it.The utility model has the advantages of cleaning and easy bundle positioning operation.一種床包裝置，係包括一床包本體，於其周圍一體延伸一包覆面得包覆至一床墊下，且於該包覆面周緣設有一第一鬆緊帶以形成一可供該床墊套入之套床口；以及數個第二鬆緊帶，係分別設於該包覆面角落之下緣，各該第二鬆緊帶之兩端係分別固定於該包覆面角落之兩側，用以緊束於該床墊之角落，藉由以上構件之組合，由該床包本體之套床口往該床墊上套置，並藉由各該第二鬆緊帶卡合於該床墊之角落後，配合該包覆面包覆住該床墊，且該包覆面為該床墊壓住，而其第一鬆緊帶得緊拉住該包覆面並壓固於該床墊周邊下方而形成定位，再將各該第二鬆緊帶拉伸後緊束於該床墊之角落，使整個床包裝置緊密固定服貼並且躺臥舒適，從而防止該床包裝置之皺摺或滑移，俾可長時期保持床墊表面之清潔外，並且可方便將之拆卸做清洗，再重新予以組裝，是達到具保潔及易於套束定位操作效果。
