Do you have WIFI in the house? Try putting it out at night. Also, if you have electronics in your bedroom (i.e. lamps, an alarm etc.) try to pull out all the plugs for 2/3 nights. Don't put your phone close to the bed.
I always thought the radiation story was bullshit, but for me and my boyfriend (and a lot of other people) it actually really helped... Just try it for 2/3 nights and maybe it can help you to.