Final answer:
Sleeping in very cold temperatures does not improve the restful effects of sleep; rather, temperatures between 60 and 67 degrees Fahrenheit are seen as optimal for sleeping. Very cold conditions can lead to restless sleep. option 2
Step-by-step explanation:
The question addresses whether sleeping in very cold temperatures improves the restful effects of sleep. The best answer would be False. Optimal sleep is generally achieved in environments where the temperature is between 60 and 67 degrees Fahrenheit. Extremely cold temperatures can be disruptive to sleep, as the body can struggle to keep warm, leading to restless sleep and potential awakenings. However, it should be noted that excessively warm temperatures can also be detrimental to sleep quality. Therefore, while a cooler bedroom temperature is recommended to promote better sleep, 'very cold' temperatures are not conducive to improved rest.