Waking up at night

So

My daughter is EBF no bottle and at almost 5 months she still wakes up numerous times to nurse overnight. I crave a restful nights sleep.

My mother suggested feeding her cereal before bedtime.

My plan was to feed her at 6 months.

I’m still at a huge toss between purées and BLW.

Do u think feeding her cereal is a good idea before sleep to help her sleep longer?

Open to other suggestions too.

Thank you