Indians are losing nearly 4 nights of sleep a year and climate change is the reason
We tend to think of climate change in terms of melting glaciers, wildfires, and rising sea levels, and all the big, dramatic events surrounding it across the world.But do we ever think about how this massive change could be impacting our daily lives in ways that are even hard to connect?Do we ever think that the hours of sleep we lose are simply because our nights are getting hotter? It’s not something you’d notice day to day, but add it up over months and years, and the toll becomes surprisingly large.
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Almost a week of sleep is getting lost to the warming planet every year
According to Climate Central, a US-based climate science research organisation, the average person worldwide lost nearly 56 hours of sleep every year between 2020 and 2025 simply because nighttime temperatures were too high. Of that, just over six hours, roughly equivalent to one full night’s sleep, can be traced directly to human-caused climate change rather than normal seasonal heat.Climate Central says this is the first analysis to actually quantify how much sleep climate change itself is costing people, by combining existing research on temperature and sleep with real-world and “counterfactual” temperature data by comparing what nights are like now to what they would have been without global warming.According to research, hotter nighttime temperatures are making it harder for people to get the rest they need, and the trend is accelerating as the climate-linked share of sleep loss has at least doubled since the early 1970s in nearly all of the 1,338 cities studied, and tripled in more than 800 of them.
These regions are suffering far more than others
Cities in the Middle East fared worst overall; research says that people in Saudi Arabia, Oman, and the UAE lost between 55 and 87 hours of sleep a year to warmer nights, with 12 to 16 of those hours due to climate change specifically, which makes it close to two lost nights annually.In the United States, the picture was comparatively milder but still worsening quickly: across 253 cities studied, people lost about 36 hours of sleep a year overall, with roughly four hours tied to climate change, nearly triple what it was in the early 1970s. Arizona, California, Florida, and Nevada were flagged as the worst-hit states.
Indians are also among the highest ones
Southern India and parts of Southeast Asia weren’t far behind, with residents losing 78 to 91 hours a year, eight or nine of which were climate-driven, said the research. West African cities in countries like Nigeria, Niger, and Burkina Faso also saw losses of 65-plus hours annually, with 10 to 11 hours attributable to climate change.
Why is this impactful for the body?
Poor sleep is linked to problems with mood, memory, productivity, and both heart and immune health, and researchers warn the effects compound over time. As the analysis says, even modest, repeated reductions in sleep can become harmful over the course of a hot season for people who are already sleep-deprived.Air conditioning helps, but it’s no cure-all, and access to it remains deeply unequal globally; only around 35% of households had it as of 2021, according to Climate Central. The organisation also cautions that because most of the underlying sleep research comes from wealthier countries, the real toll on lower-income populations is likely underestimated.
