Converting Gff To Bed With Bedtools?

I use bedtools's sortBed utility to sort BED files for various operations. It takes as input GFF files as well. However, when I feed it a GFF file as in:

sortBed -i myfile.gff

it outputs it as GFF, not BED. Is there a way to make bedtools sort and then convert the result to BED? Many bedtools utilities have a -bed flag. Do I need to use a different subutility of bedtools to achieve this? thanks.