Sleepwear and Beddings
In a similar way to the insulation in your home, your mattress serves as an insulator. Wearing thick sleepwear can also cause overheating. Thicker bedding tends to trap more heat than thinner bedding.
The quality of your sleep may be impacted by the differing heat-retention qualities of various materials.
In a 2016’s brief study an evaluation was made on the impacts of wool and polyester bedding At 63°F and 72°F (17°C and 22°C), and on sleep quality with those of wool and cotton sleepwear.
At 63°F (17°C), wool sleepwear was shown to promote sleep onset more than cotton, but at 72°F (22°C), cotton was found to promote deeper sleep.
At either temperature, the researchers found no difference in sleep onset or quality between wool and polyester bedding.