Where radiofrequency in a house usually comes from
Most of the radiofrequency inside a home is made by the home itself.
A wifi router in a hallway can be the strongest source in every bedroom it can reach. A cordless phone base beside a bed transmits all the time, not only during a call. A cell phone searching for service next to a pillow can outweigh a tower that is miles away. Some utility meters send short bursts. A neighbor’s router shows up too, usually weaker, and usually not the first thing to chase.
A survey separates those. If the strong source is yours, you can often move it, schedule it, or turn it off while you sleep. If the strong source is outside and steady in a bedroom, that is a different conversation. Have it only after the sources inside the house are accounted for.
Distance is the most reliable mitigation. A router in a closet off the living room is a different bedroom than a router on the dresser. A phone in another room overnight is a different exposure than a phone under the pillow.
None of this asks you to give up a modern house. It asks you to know which transmitters sit close to the places you spend hours, and to decide which of those hours should be quiet.