It is too hot to put on my nice snuggly warm dressing gown/robe to go to the loo in the morning.
It is too inappropriate to walk to the loo in pants and a bra, although I would consider doing it in jammie bottoms and a bra.
It is imperative I go to the loo in the morning.
In conclusion, I think I need a nightgown. Not to wear at night. It's a...morning-I-need-to-pee gown.
There we go.