This study presents a consumer-centric approach on Demand-Side Management (DSM) for residential energy systems, aiming to align cost-efficient energy strategies with the individual's preferences on operational time-flexibility for residential electric appliances, thermal comfort, and indoor air quality. The optimization framework innovatively incorporates forecasts of the Indoor Air Quality (IAQ) index and thermal comfort levels using virtual sensing technology to predict their day-ahead values, which are furtherly integrated as constraints in the optimization problem. A dual-objective approach is employed, balancing the minimization of electricity costs all whilst increasing consumer's satisfaction. The approach underlines the critical role of consumer participation in DSM and illustrates how the integration of smart home technologies can lead to reductions in energy consumption and cost savings. This paradigm not only promotes consumer engagement in energy management but also showcases the potential of intelligent home systems to optimize energy usage while maintaining personalized comfort standards.