Do you have a feeding routine? If yes stick to the feeding routine properly. If lets say her shower at 6pm, dinner 7pm then her sleeping time should be between 8pm to 10pm. Before she goes to bed ensure she had her milk, change diaper, white noise and dim light, ready to zzzz. And it is normal they either wake up or wake up only at about 6am onwards. My #1 wakes up every 3 hrs u till 14 months while my #2 wake up once or never. However I make sure both will have a full bottle of milk consumption before zzz.