UK and Ireland heatwave hampers sleep, sparks cooling advice campaign

A heatwave sweeping the United Kingdom and Ireland is disrupting nighttime rest for millions. A poll of 2,000 British adults found 45 % struggle to sleep in temperatures above 30 °C, while Irish residents report similar difficulties and are being urged to avoid cold showers before bed. Experts warn that poor sleep can increase risks of heart disease, diabetes and other health problems.

To mitigate the heat, giffgaff installed a "Keep Your Cool" cooling zone in London, offering mist and shade for football fans. Sleep specialists in Ireland recommend lukewarm showers instead of cold ones, and advise keeping windows shut at night to prevent insects and burglary risks. A BBC science reporter outlines seven physics‑based steps for keeping homes cool, such as closing blinds, turning off electronic devices, using fans correctly, and ventilating in the evening when outdoor temperatures fall.

Additional tips include placing ice‑filled bowls or wet sheets before fans, and avoiding common mistakes that can make rooms feel hotter. Together, these measures aim to improve sleep quality and reduce heat‑related health stress across the affected regions.