Maddiepie - I'm with you on this one - our little ones are the same age and we are getting up in the night also. Baxter is in a crate next to me during the night and I know I am blessed that he whimpers during the night to go potty. He potties and goes right back to sleep - until 3-4 hours later.
I guess we can find comfort that we are not alone - I will think of you getting up with Maddie as I gaze at the stars tomorrow morning at 2 a.m.!