I do understand the fire hazard of non retardent material for children, but I was ironing children patterned flannel for sleep pants for the grandkids and noticed it says "Do not use for children's sleepwear". Now it got me to thinking. Why would you not "sleep" in this material? If I made a shirt to wear outside with this, would it then be safe as the kids were awake and not sleeping in it? :|