Can’t stand the heat? Move your bedroom | Letters

The real killer in this heatwave is modern architecture with its lightweight (cheap), over-glazed new dwellings with no or few opening windows

Prof Helen Stokes-Lampard is wrong when she says the ideal bedroom temperature should be 18C–24C (Sticky nights leave Britons suffering sleep deprivation, 14 July). In the UK people sleep comfortably at temperatures of 29C-31C in their personal space within the bed and use bedclothes to allow them to attain these temperatures.

Human core temperature is about 38C and the thermo-regulatory system uses many strategies to maintain it. The thermo-neutral zone at which the resting body needs expend no energy to keep warmer or cooler (eg shivering or sweating) is between 28C and 32C. Imagine the bliss on holiday of lying naked under a bedsheet with a cool Mediterranean breeze blowing, probably at 30C-32C. Heaven.

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