eli5: What’s with all the fire warnings on kids’ sleep clothes? Are they gonna roll themselves into starting a fire? *totally confused*
In: Physics
The idea is that in a nighttime house fire, their clothing should be somewhat protective. Children’s sleepwear must either be 1) flame-retardant or 2) close-fitted to the body (which means it won’t have as much oxygen and won’t catch fire as easily).
For a similar reason, [mattresses are required to be fire-resistant for 30 minutes in open flame.](https://www.chicagotribune.com/news/ct-xpm-2007-07-01-0706300004-story.html)
People should have a chance to get out of a house fire even if they’re asleep when it starts.
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