Hungry .... My boy is 13 month old (May 2012 baby). He sleeps at 10.30pm, and drinks at 2 pm and 6pm, wakes up at 8 pm.
When giving the bottle, he sucks it so fiercely. Seems like very hungry. They are at their growing stage. As a full time working mum, I feel its very tiring to give night feeds. But to deprive them, its not fair to them as well. Lack of required nutrition can have a long term negative effect on intelligence. It may also lead to gastric.