we learned the exact same thing had happened to taylor stern eight months earlier. like julian, 15-month-old taylor was wearing a halo sleep sack and the zipper hooked on to her thtooth. they described what happened next. >> and what happened to your tooth? >> it pulled out. >> federal regulators investigated the incident and concluded there was no product defect. "7 on your side" learned there have been six other zipper complaints involving the sleep sacks. five involved crumbling in pieces or being bit off by a child. >> it's very dangerous and faulty product that should be taken off the shelves. the fact that they come off is one problem but the fact they disintegrate is even worse. >> in 2005, old navy voluntarily recalled a product following complaints that the zippers would break or come lose. halo said the product achieved all safety standards and analyzed complaint and found to pattern of defect. >> when we continue, it's something we complain about and see every single day. the effect of fog on plants and animals. off highway vehicle territory now off-limits