Dog prefers to chew on blankets and pillows as opposed to toys?

I have a 5 year old dog who prefers to chew my blankets and pillows as opposed to Rawhide and other toys. I will give her a squeaky toy and she'll tear it up in 20 minutes and then back to my blanket. Not only is it tearing up my things, I also think it's bad for her as she ingests parts of the blanket after chewing. Any advice?