The entire world is a suitable place to prostrate oneself; the scholars have made no exceptions except very few, such as graveyards and lavatories. Wherever a Muslim is when the time for prayer comes, he should pray: in a mosque, if possible, or else in a hallway or park, on a sidewalk or in a parking lot, or in a corner of a store. Even if one can find no other place than a church, it is permissible to pray in it. - Sheikh Muhammed Salih Al-Munajjid
I mean like praying next to bed a kid has wet but not on it.