Re: crawling and bedsharing?
I think the most important thing (other than bed rails) is to teach her to safely get off the bed by herself. You should start as soon as she is mobile. And it never hurts to put pillows down on the floor around the bed. But all of mine have picked up very quickly on how to get off the bed safely by themselves.
And I actually put pool noodles under the mattress pad/ sheets against the bed rails so there is not a gap. GL mama!
Kerri, married to my love, SAHM to DD (12/05), DS (6/08), and new DS2 (3/11)