Britain is experiencing its third heatwave of the summer, with temperatures described as creating “tropical” night conditions in many areas. According to a poll referenced by the reporting, up to two thirds of people say they are struggling to sleep during these hot nights. The coverage links the problem to ongoing heat affecting overnight comfort rather than a specific single event, presenting it as a broader difficulty encountered as the heat continues. While the reports focus on the sleep impact, they place it in the context of the wider weather pattern of repeated heatwaves during the season. No additional details on the survey methodology, sample size, or the exact questions asked are provided in the supplied text. Overall, the combined reporting centers on how sustained hot conditions are affecting public well-being, particularly sleep, as the third heatwave arrives.