i do use on table anyways if my fan is broken if i buy a colling ppad w]ll it overheat?

Why would i play gunz in my bed? i pla on table and its not broken i dont think the laptop is about 1 year old and the fan could just be cloged with dust cuzz ive never cleand the fan b4 and if it is broken. if i get a cooling pad i think it would be cool like around 30 degress