Warm-keeping cotton

The utility model discloses warm-keeping cotton, which comprises a mixed fiber layer, a first non-woven fabric layer and a second non-woven fabric layer, wherein the first non-woven fabric and the second non-woven fabric are fixedly connected at the upper side and the lower side of the mixed fiber layer. Through the arrangement of the non-woven fabric layers at both sides of the mixed fiber layer, the embodiment of the utility model avoids the defect of poor ventilation property caused by casting one layer of polythene plastic film on one side of non-woven fabric, and avoids the occurrence of uncomfortable feelings such as sultriness and the like when people wear the clothes. Both sides of the mixed fiber layer are respectively provided with the non-woven fabric layers, the heat insulation effect can be realized, and the ventilation performance thereof is good, and in addition, the two layers of non-woven fabric layers can prevent chemical fiber in the mixed fiber layer from being penetrated from any directio