Standard crib quilt size?

[RiverMomm]

I'm confused about crib size quilts as now they recommend nothing be in the bed with infants, just dress them warm and into the crib they go.

Thanks all for the measurement advice.

I don't normally make quilts for cribs just because of the guidelines saying nothing should be in the crib. But a young woman who I have known since she was born, emailed and asked me to make a crib quilt for her. I asked if this was something for the floor so the baby could play, maybe thrown over a rocking chair or hung on the wall but all she said was she wanted one of "my" quilts for the crib to go with the colors she and her DH picked.

And, yeah, I know. Someone who doesn't quilt has not idea how much work is involved. But she is a sweet, loving person and I will enjoy making the quilt, to be used to snuggle the baby while she rocks him