Is it normal to point your toes??

Ok so this is about my mom. She has this habit of pointing her toes. Even when shes just laying in bed relaxing. She does it all the time and she says it feels like her foot is relaxed. But to anyone else it feels like you have to stretch your foot. And when she does put her foot back (as if it were relaxed to anyone one else) she says it's uncomfortable. So all I wanna know is if you do this or does anyone u know do this??