Yes—fire departments and safety experts do warn against sleeping with your phone while it’s charging, especially under your pillow, on your bed, or covered by blankets. While rare, phone-related fires and overheating incidents do happen, and they pose real risks during sleep when you’re unaware and unable to respond quickly.
Here’s what firefighters want you to know—and how to stay safe.
🔥 Why It’s Dangerous
1. Overheating Can Cause Thermal Runaway
- Lithium-ion batteries (used in all smartphones) can overheat if damaged, defective, or obstructed.
- When buried under pillows or blankets, heat can’t escape, causing temperatures to rise dangerously.
- In extreme cases, this can lead to “thermal runaway”—a chain reaction that may cause fire or explosion.
2. Faulty Chargers or Cables Increase Risk
- Cheap, off-brand, or frayed chargers lack proper safety certifications and can short-circuit.
- Using a phone while charging (e.g., watching videos) adds extra strain and heat.
3. Fires Start Quietly—and Spread Fast
- Bedding, pillows, and mattresses are highly flammable.
- A small spark or smoldering phone can ignite a fire while you’re asleep, reducing escape time.
📊 Real Incidents: Fire departments worldwide have responded to bedroom fires linked to phones charging under pillows—some resulting in fatalities.
✅ Firefighter Safety Tips
