
Hot vs. Cold: Sleep Edition
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How the Temperature of Your Room Impacts Your Sleep Quality
Ever notice how a too-hot or too-cold room can make falling asleep nearly impossible? The temperature of your bedroom plays a huge role in the quality of your sleep, and surprisingly, it’s something we often overlook.
Why This Matters
Your body naturally cools down as it prepares for sleep. During deep sleep, your body’s temperature continues to drop, helping you enter the restorative stages of rest. But if your room is too warm or too cold, this process gets disrupted, making it harder for you to fall and stay asleep. In fact, research shows that an environment that’s too warm can interfere with your sleep cycles and prevent you from reaching the deepest levels of sleep.
How Room Temperature Affects Sleep
Here’s how temperature affects your body’s ability to sleep:
- Too Hot: When the room is too warm, your body struggles to cool down. This leads to restless sleep, frequent wake-ups, or trouble falling into a deep, restful state. High room temperatures can even cause your body to produce more cortisol, the stress hormone, which can make it even harder to sleep soundly.

- Too Cold: On the flip side, a chilly room can cause discomfort, making it hard to relax enough for sleep. When it’s too cold, your body may respond by increasing your heart rate or causing muscle tension, which can keep you from reaching the deeper, more restorative stages of sleep.

What’s the Ideal Temperature for Sleep?
Research suggests that the optimal sleep temperature lies between 60°F and 67°F (16°C - 19°C). This range helps your body naturally drop its core temperature and prepares you for deep sleep. But keep in mind, everyone’s perfect temperature might vary slightly. The key is finding what works best for you.
How to Optimize Your Sleep Environment
1. Adjust Your Bedroom Temperature:
Keep your room cool but not too cold. Try using a fan, air conditioner, or even a smart thermostat to adjust the temperature to your preference.

2. Invest in Quality Bedding:
Choose breathable sheets and blankets made of natural materials like cotton or linen. Avoid heavy, heat-retaining fabrics, especially in warmer months.

3. Create a Nighttime Routine:
Aim for consistency in your sleep schedule, but also create a relaxing bedtime routine. Avoid intense activities or screen time before bed, as these can raise your body temperature.

4. Cool Down Before Bed:
Taking a lukewarm shower or bath an hour before bedtime can help your body naturally cool off afterward, making it easier to drift off.

5. Use Sleep Aids Wisely:
Some people benefit from sleep masks or even cooling pillows, which can help regulate body temperature while you sleep.

The Extra Benefit
Maintaining the right sleep temperature doesn’t just help with falling asleep, it also improves your mood, metabolism, and immune system. When you’re well-rested, your body performs at its best, and you wake up feeling refreshed and ready to take on the day.
🌙 Next time you find yourself tossing and turning at night, check the temperature of your room. Keeping it cool and comfortable will help you sleep better, feel more energized, and improve your overall well-being.
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