duo universal cervical sleep designs a one-piece product designed to provide comfort, stability, deep, restful and restful sleep for the user; The state of the art describes equipment for the same purpose, however, consisting of a single height in different formats of materials and finish, unlike the universal cervical sleep duo (3), now in presentation, which is constituted in a concave format, prepared with nasa foam, or with ligth latex, with a total length of 69cm in length and 37cm in width, in one piece, consisting of two distinct heights and defined in this piece respectively 7cm and 14cm. The 7cm high part is 37cm long and 37cm wide. The 14cm high part is 32cm long and 37cm wide. At different heights with their concave recesses, there are well to accommodate the head during sleep, being 2cm recess for chest upward and 1.5cm recess for chest on one side of the body. the 90 degree angle formed by the height difference from 7cm to 14cm, the upper part of the universal cervical sleep duo, is concave rounded, overlapping, across its 37cm width.
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