I was just talking with an employee, today, at the local LQS about flame retardent cloth and she made the same comment Patrice made about a fire in the bedroom being a bigger issue. She also noted that we ourselves are not flame retardent, so even if the cloth was flame retardent, our faces, feet and hands would be burning so it wouldn't exactly be that useful. I thought that was a good point as well.
I think a working smoke detector in every room of the house, we have eight, is more effective than flame retardent clothing or bedding.
just my two cents, Maribeth