Have you ever found yourself trying not to fall asleep during a lecture in an afternoon? Even if the topic was very interesting for you. Could it be that the lighting is helping me fall asleep? This question was the starting point for doing this study. We as humans depend on daylighting to have a healthy internal clock, for that we need to expose ourselves to the variation of light every day. This study focuses on indoor spaces, where we spend most of our time. The case study was in a learning environment, a lecture hall where projections are used every day, and where the lighting scenario must have low levels and hard contrast to present a good quality image. The methods used were a literature analysis, a pre-test at the Lighting Lab in KTH and a mockup to create lighting scenarios where participants would compare current and proposed lighting atmosphere. The results reflected that participants were more likely to sustain their attention in the lecture if the lighting atmosphere was located on their visual needs rather than setting the lighting scenario only for projector’s requirements. The outcome was a list consideration for future lighting design directions for the space.