Sweetie has the cute and safe performance and effective function. First, Sweetie can change their light color and soothing sound to make a comfortable environment. In this way, it can lead children to sleep quickly and awake naturally. Moreover, Sweetie also includes sensor to build a monitor part to ensure children safety. In addition, Sweetie has her face to express the time need to go to sleep or awake. It is predicted that children would make a good sleep behavior by sleeping with Sweetie.

Dr. Zhenwei You is the director of the product design institute in Beijing University of Posts and Telecommunications, researcher at the institute of design psychology in Chiba University (Japan), and the chef editor of International Journal of Design Science (America). He was employed by Squareone Design in Germany and designed products for over ten international famous brands, of which 13 products were produced in mass production, including Braun's CoolTec Shavers. In 2010, he received Mia Seeger Preis award. Dr. Zhenwei You has good reputation in the design academia for his published SCI papers and being a reviewer of many journals.