It really depends on when she gets a bottle before bed. Babies' diegestive tracts are shorter and formula is pretty easily digested. So she will get hungry quicker than an older child.
They do grow out of needing them. It does become more of a habit than anything else. But if you feel like she still needs it and you're comfortable getting up and giving it to her, no one can tell you that you're wrong. Each baby is different from the start. So only you know what is her "normal". Go with your gut. Mommy guts are almost always right on.