I don't say my childrens' names, so have name changed, but I have a Matilda too.
@Awwlookatmybabyspider, I find your comment a bit odd too. My Matilda is 13 and every morning it's:
"Matilda, are you ready?"
"Mat, can you hear me?"
"Oh, Tilda, when you come down can you bring my phone"
"Thanks, Tills"