This paper analyzes the cyclical properties of the optimal labor wedges in a Mirrleesean business cycle model. Agents value consumption and leisure and receive persistent idiosyncratic shocks to their value of leisure, which are private information. The production structure is identical to a standard real business cycle model with aggregate productivity shocks. Solving the mechanism design problem for a version of this economy calibrated under logarithmic preferences, I find that the optimal labor wedges are approximately constant over the business cycle.