The Met Office has warned that millions could struggle to sleep this week as parts of England and Wales face several consecutive 'tropical nights', with temperatures expected to remain above 20C even after sunset.
The unusually warm nights are forecast to accompany a heatwave that could push daytime temperatures as high as 37C or 38C by midweek. Forecasters say the lack of overnight cooling may become one of the most significant aspects of the hot spell, preventing homes, buildings and city centres from shedding heat accumulated during the day and into the early hours.
