Turning off the WiFi on in your home is important. Especially when you sleep. It is advisable to attach a timer to switch off the router entirely the hours you sleep and are not using WiFi. It is very important to disable WiFi if you are sitting close to the WiFi router. Plug your computer in and turn off the router. The switch in the router software is usually "disable radio."
Search creiteria to find out how to turn of your router.
1. Get the make and model of your router: Example Asus RTN12
2. Get the IP address for the router, the login and password (if required). This must be done with a computer that is plugged directly into the router with a cable (an ethernet cable). This prevents the computer from disconnecting from the router when the WiFi is turned off.
Instructional video on the basics of WiFi dangers.