How can I prevent static electricity sparks while using a blanket?

To prevent static electricity sparks while using a blanket, you can try using a humidifier in the room to increase moisture in the air, which can reduce static buildup. You can also try spraying the blanket with a fabric softener or anti-static spray, or lightly dampening the blanket before use. Additionally, avoid rubbing the blanket against other materials that can create friction and static electricity.