Does chess really make you intelligent

Online chess for kids should be regulated by parents. Moderation is key to good effects of chess.
Agreed.
And parent 'regulation' varies though.
But - bedtime is bedtime ... and kids as well as parents know they don't want to be tired tomorrow - and the value of a good night's sleep.
Every night.
In fact - kids often sleep better than adults do !
Sent you a PM.