In this paper, we examine the need of Internet of Things (IoT) for energy conservation in Nigeria, where energy generation and distribution are challenging. Despite these challenges, energy wastage is prevalent, with some people leaving their security lights on even during the day. The study focuses on the use of IoT technology to conserve energy, and it aims to determine the opinions of Nigerians from various demographics on the applicability of this technology in their daily lives. The study answered five research questions and performed five hypothesis tests. The findings revealed that there was a significant difference in the level of awareness based on gender, and respondents had a deviant perception of sometimes leaving their lights on. However, there was no significant difference between age groups regarding the acceptability of using IoT to conserve energy. The study also found no significant difference between male and female respondents in their assumption that IoT could help conserve energy. Respondents perceived irregular power supply as a reason for forgetting to turn off appliances. The study concludes that incorporating IoT devices into households could help salvage power mismanagement and promote energy conservation in Nigeria. The findings have implications for policymakers and stakeholders interested in promoting sustainable energy practices in the country.