DD has always been a reasonable sleeper (so I know I shouldn't complain). But in the past month or so she has been going to bed at usual time (7 - 7.30ish) and struggling to get to sleep. She can be awake for an hour + and then is over-tired the next day.
She looks pale and tired and behaviour has gone downhill as a result.
Not sure what the problem is - lighter evenings, trouble unwinding or something else?
Has anyone else experienced this?