I prewash anything larger than a Jelly Roll.
I put darks with darks and lights with lights.
Reds are alone as are blacks.
I put in washer, permanent press, unscented ALL, cap or so of Clorox 2, and when done, place in dryer on low for about 20 minutes.
If I think the edges will unravel, I cut the corners on a diagonal.
No softener used until project done.
I have never had a bleed yet.