Can you get brain cancer from sleeping with cell phone?

i sleep by mine right on the side of my pillow, so it's rather close to my head. i am now worried that i might get brain cancer from this. is this a possibility? the reason i sleep with it is because i use it for my alarm. should i stop? i do NOT want brain cancer just because i am too lazy to buy a real... show more i sleep by mine right on the side of my pillow, so it's rather close to my head. i am now worried that i might get brain cancer from this. is this a possibility? the reason i sleep with it is because i use it for my alarm.
should i stop?
i do NOT want brain cancer just because i am too lazy to buy a real alarm clock.

thanks.
Update: i've been sleeping with it for months now
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