Sleep is essential for health and well-being, not just for how long you rest, but for how well your body and mind recover during that time. Most adults need 7–9 hours of quality sleep each night to maintain focus, mood, and immune strength. Poor sleep increases the risk of heart disease, diabetes, and depression.
One often overlooked factor affecting sleep quality is room temperature. Experts say the ideal sleeping temperature is between 60–67°F (15–19°C). Too hot, and your body struggles to cool down. Too cold, and muscles tense, disrupting deep sleep.
Your body naturally cools as it prepares for sleep. When the room supports that drop in temperature, you fall asleep faster and reach deeper, more restorative sleep. Melatonin, the sleep hormone, is also enhanced in cooler environments.
To optimize sleep temperature, use breathable bedding like cotton or linen, which prevents overheating. Choose mattresses designed to stay cool, such as those with airflow technology or cooling gel layers.