No. The right thing could be something like: "You should take a break every hour so (that) you won't be bored" or "You should take a break every hour in order not to be bored " (Well, in fact, I'm not sure if this one is "legal", so I ask someone to confirm it, please. " But, definitely, not "for don't be bored" .
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PiplotYou should take a break every hourEverything is fine here.
Piplotfor don't be bored?This is where it becomes awkward.
MrGuedes(...) it may be better to use the verb "to feel bored" instead of "to be bored" (...)