Breastfeeding at night

I am currently breastfeeding my 13 month old and I really enjoy it, but I want to wean her off the night feedings and I don’t know how. I was told to give her water but trust me she knows the difference and screams until I give her the breast and she doesn’t always nurse long enough to get the let down at night. Should she still be nursing at night or should she be sleeping through the night? She only occasionally needs to breastfeed to go to sleep, shes is pretty easy in that department. I am just ready for a good night sleep! Please help!