It’s a mystery

You are sleeping in an aircon room with 2 kids;

You | Nephew | Niece

Only you were covered by a blanket

You woke up because you heard some cry

You tried to cover your niece with the blanket

Then you realised, there was a patch of wetness on it

You checked the two of them, neither were wet

Nephew was wearing diaper

The wet patch doesnt smell stinky, and neither were both of them

You went to the washroom

It was kinda smelly

There were pee on the side on the bowl and around it on the floor too

And you were on the edge of peeing

Now. 

What was that wet patch? 

Who peed?

Where am I going to sleep, coz they both moved to the centre of the SS bed?