We had good results with these, DS3 went off to sleep quite quickly after bathing in them but be warned, they did make him more hyper the next day, I think possibly the result of so much sleep Its definitely worth a go though.
As for being hungry, DS1 ( aged 7 AS ) and DS2 (aged 4 NT) can both make themselves breakfast in the morning and then sit to watch TV til I get up, its much nicer in the mornings now they have learnt how to do it! Its a skill worth getting them to learn IMHO!
Sally