These pocket radio from the 1973 JC Penney catalog play both AM and FM stations. There was another pocket radio in the catalog that only played AM and it sold for $6.88. In 1973 AM radio was king with the majority of AM stations playing music. Today most AM stations are talk radio stations.
Even when I was a kid, I would sometimes fall asleep with my transistor radio playing.

I would also, dead batteries next morning.