May I ask if you recently have noticed anything spiritually new in your life? Folding laundry is showing you are having a personal and family cleansing. White shirt is representing "being made pure" in your covering under God. With this snake being in your 9 yr old, its relating to something you are starting to see spiritually relating to your children.
May I ask what your mothers beliefs are? Is she a believer in God?
With your mother not asking you to go back to sleep is showing those who are asleep spiritually. Usually they live their life in the world and have no relationship with God. Perhaps she is symbolizing the part of you that has a relationship with God but does not want you to fall back into the world away from God. Snakes can sometimes be a lil tricky. They usually represent temptations of the flesh , sins or curses. But because of the color and behavior of the snake it may be representing your spiritual gifts. Pink is color of femininity, and purple is the color of Royalty, God's children. With the colors being "pastel" can be showing you are starting to awaken to these gifts or are trying to gain clear understanding of its representation in your life. With your 9 yr old being in the dream. forgive me I worded it wrong in my first response to you. I did not mean it was in your daughter I meant it was in her room. She can be symbolizing your gifts as well. With it staring at you perhaps it is waiting for you to start using this spiritual gifts that you have from God.
Then that confirms it. :-) She is symbolizing strong faith. I hope this helped you more so in understanding your dream.