I am a night owl too. Seems to be written into my very nature. It is hard when people criticize me for it.
Summer is different for me though, since when the sun goes down all kinds of unpleasant bugs start to show themselves around my house. Cockroaches in particular can give me panic attacks although I have tried therapy and medication to get over that.
In summer, I try to get to sleep around 9 pm. It is hard, though, for my night owl nature to adjust to this.
I don't think there is anything wrong with being a night owl. It hurts a lot when others are dismissive of our natures.