The present invention provides winter summer dual replaceable bedding. A opening 331 is opened to the bottom cover 33, the coupling portion 332 is provided around the opening, the coupling portion and the mutually joinable connecting portion 344 at a position corresponding to the coupling portion of the upper cover 34 provided, the plurality of blocks 342 which are spaced arranged further to the upper cover is provided, in use, the condition of the season, it is possible to replace the top cover required, as well increasing the practicality and change of bedding, The increased breathability and comfort of the bedding is to achieve a circulation of air through the channel which is reserved between the block bodies. .BACKGROUND
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