What temperature should I set my thermostat to in the summer to achieve an optimal balance between comfort and energy efficiency? As the sweltering heat of summer descends, one might ponder the implications of different thermostat settings on both personal comfort and utility bills. Is there a scientifically backed range that maximizes comfort while mitigating excessive energy consumption? Should I lean towards a cooler setting during peak afternoon hours, or would a higher temperature suffice when the sun begins to wane? Furthermore, how do individual preferences, home insulation, and regional climate variations influence the ideal temperature setting? What role does humidity play in the equation, and are there best practices for transitioning between settings as the seasons shift? Feeling overwhelmed by choices, how can one determine the equilibrium that not only ensures a pleasant living environment but also aligns with environmentally sustainable practices?