The Sad Moment is a way to help your toddler deal with their emotions when there is nothing really "wrong". For example, when they want to play with a toy their friend is playing with and get hysterical when you tell them "no". Or when they ask for a cookie before dinner and you tell them they need to wait.
After I explain to The Quiet Contemplator the right thing to do in the situation or why she can't have what she wants, I ask her is she wants to have a Sad Moment. She almost always says yes. I then give her her turtle pillow pet (or any soft stuffed thing you want) and she buries her head in it and cries until she feels better. Usually this lasts less than a minute.
A Sad Moment with Turtle is kind of just a place for her to put her emotions when she doesn't know what to do with them. It almost always makes her feel better. I am amazed every time she says "yes" when I ask her if she needs a Sad Moment. It is like she knows that she just needs a release. Afterward, she totally rebounds and it is like nothing happened.
I guess this is kind of like a time out, only it helps your kid get rid of all the pent-up emotion while also giving them time to think. I hope this helps some of you. I know it has helped the crap out of us. Thank you, Allison. You are an awesome mom!