C.L.
Does she usually wake at or around the same time everynite?
If so you can try to wake to sleep method, genetly but not fully wake her for several nites in a row at a different time each nite then shhh/pat back to sleep you dont want her to get fully awake an active, but to wake up, what this does is break the habit of waking at a set time everynite. Then gradually tapper off waking her up, it takes around 10x to form a habit so will take about that sometimes alittle more to also break the habit.
I'm not sure how old your LO is but also try a dream feed this fills their little bellies stirs them slightly but doesnt wake them and helps start healthy sleeping habits. Anything we do as parents to form bad sleep habits with our children a little patience and time can fix. Check out babywhisperer there is some great advice there