Lullaby: Environmental Sensing For Sleep Self-Improvement

We are developing a system to help users improve the quality of their sleep by monitoring environmental factors that disrupt sleep and providing feedback. This system, called Lullaby, has several design goals. Lullaby’s sensor suite should be practical for deployment into bedrooms: it must be unobtrusive, inexpensive, and respect users’ privacy in this sensitive context. Lullaby should identify relationships between sleep disruptions and environmental factors and reflect those back to the user. Finally, Lullaby should provide concrete recommendations for addressing the identified sleep disruptors. In this paper, we describe the design of Lullaby’s sensor suite and user interface, and how it will support personal use in the home.