DS1 gets up at about 7.15am, and his bedtime is at about 8pm, but increasingly he's saying that he's not tired. Left to his own devices he'd stay up until about 8.30/9 (and then go to sleep very quickly). Is this enough sleep?
I'd rather that he stayed up later and went to sleep quickly, rather than going to bed sooner and clumping around saying that he's not tired.