How to get the perfect night’s sleep

More importantly, our bodies need to maintain a stable body temperature throughout the night, which is essential to sleeping well. This is known as thermoregulation. Bedding made of natural materials helps to encourage thermoregulation. “Studies conducted into the physical and psychological effects of bedding and sleepwear found that sleep patterns where people are exposed to heat rather than cold are more susceptible to disruption,” says Dr Hare. “Natural fibres, such as linen, cotton and bamboo, support thermoregulation better than man-made fibres.”

“If mattresses are made of materials like memory foam or polyester, they retain moisture,” says Tremlett. According to Dr Hare, a good temperature in bedrooms, in terms of encouraging sleep, should be between 16°C and 19°C. In summer, an electric fan may be needed to achieve this.

Comfort zone

For Jessica Hanley, who founded British bedlinen brand Piglet in Bed in 2017, bedlinen made of natural fibres helps aid good sleeping patterns all year round: “Natural wool mattresses, mattress toppers, duvets and pillows and all-natural linen bedding regulate body temperature while you sleep, regardless of the season.” The company, which also has a branch in Illinois and has a growing US customer base, produces bedding predominantly made of sustainable linen. 

Given that thermoregulation is essential for sleeping well, are heat-generating weighted blankets, electric blankets and hot-water bottles advisable? The consensus is they are comforting but counteract thermoregulation. “Studies of weighted blankets have concluded they may reduce anxiety but don’t aid sleep,” says Dr Hare.

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