The expert also shared other tips that can help you stay cool at night and improve your sleep.
She recommended avoiding heavy or spicy meals in the evening, as well as skipping hot drinks, both of which can raise your core temperature and make it harder to relax. Instead, lighter meals and cool drinks should be the go-to.
Exercising too late in the day can keep the body too warm at bedtime.
For evening gym-goers, a schedule change may be necessary to allow the body time to cool down before sleep.
Swain added that making easy changes, like keeping your curtains closed during the day to block heat, avoiding daytime naps that disrupt night-time rest, and removing unnecessary pillows or cushions from the bed, can help create a more comfortable sleeping environment.
The advice comes as the Met Office warns of rising temperatures expected to last from Thursday 10 July through Monday 14 July.
Chief Meteorologist Jason Kelly said heatwave criteria are expected to be reached by the weekend, with highs of 31°C forecast for Thursday and up to 32°C in parts of England and Wales on Friday.
While the peak of the heat is expected over the weekend, the effects could linger into next week, with the high temperatures stretching further north and west than previous hot spells this summer.
As the country faces another stretch of intense heat, experts continue to remind people to stay hydrated, avoid excess sun during peak hours, and use small but effective cooling methods to stay safe and comfortable.
