This document is the official final design review for the Baby Soothing Device. This product is intended to help families sleep throughout the night by allowing a baby to be soothed back to sleep without constant and direct parental interaction. It is maintained by Mechanical Engineering students at California Polytechnic State University, San Luis Obispo for Dustin Yoder, the project sponsor. The purpose of this document is to present the design process from ideation to finished design in great enough detail that its manufacturing procedure may be replicated if desired. This document further explains all the research, testing, and benchmarks used to determine that our design meets our engineering specifications. Key components of this document include our Scope of Work, Preliminary Design Review, Critical Design Review, and Final Design Review. Furthermore, in the appendices, this document contains our Manufacturing Procedure, Bill of Materials, Project Budget, Source Code, Safety Review, User Manual, full Drawing Package and more