Different patterns- different fabric requirements
Do you want the quilt to just cover the mattress? Hang down? How much?
We would need more information.
There are many types of battings, cotton, poly, cotton/poly, wool, silk, bamboo...
Fabric and batting prices are all over the place, it depends on where you choose to buy them from.
I know this isn't much help to you, but if you could post a pattern, we can help you a bit more :wink: :D:D:D