It's a really warm night - 17/18 degrees outside and much warmer inside. DD2 is 4 weeks old but born at 33 weeks so she is in effect like a newborn. She weighs 5lb. She's been going to sleep in a bodysuit and a sleep suit with 1 or 2 blankets. It's not been this hot though. Do you think I should take the bodysuit off and just have her in the sleep suit?