Getting a good night's sleep is vital, especially if you have a big day ahead. The same can be said for people who work night shifts -- trying to sleep during the day can be an exercise in frustration ...

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Fig. 1. Given (a) the scanned face model of a subject, we develop an optimization-based approach to design (b&c) a PAP mask cushion that fits the face model. (d) The designed mask cushion is ...