Neither the Eight Sleep mattress nor the Pod Cover emit EMFs, but the Hub (the device that sits next to the bed) does emit EMFs. However, it's an extremely low amount that is less than emitted by a box fan that plugs into a wall. I positioned our Hub several feet away from the bed, so I'm not concerned about radiation. You can learn more about my take on EMFs and how I reduce my exposure in this article. The biggest issue I have with Eight Sleep is that it requires WiFi to be turned on at all times. That’s unfortunate, because wireless access points are a significant source of EMFs that I’d rather avoid while sleeping.