At 16 months she shouldn't be using a bottle anymore. At least that's what most docs say. Does she fall back asleep right after having that bottle? Or is she falling asleep because she's in bed with you? You might be forming a bad habit by bringing her into bed at that age, but you never know what kids are going to do. I understand being totally exausted being pregnant with a toddler...I've been there. Would putting her to bed a bit later buy you some more time?