A letter from Santa for a new big sister or big brother can celebrate one real moment from your older child’s year. Maybe they chose the baby’s coming-home outfit, drew a welcome picture, or sang to their new sibling. Those details give you something personal to put in their Christmas letter.
When conversations and presents keep turning toward the baby, you may want one December surprise addressed only to your older child. The letter can recognize their new role while leaving room for their dinosaurs, dance classes, and Christmas wishes.
Quick answer: Tell your child about the baby yourself, then use Santa’s letter to celebrate something they’ve done. Include one specific sibling moment and a favorite interest, without asking them to be grown-up or happy about the change all the time.
Why the Older Child Deserves Their Own Christmas Moment
An older child’s Christmas letter should still be about them, even in the year a baby arrives. Mention the new sibling briefly, then return to the recipient’s interests and experiences.
The American Academy of Pediatrics’ guide to helping older children adjust to a new baby recommends involving preschoolers in preparations. It also encourages time with the older child after the birth, when visitors may focus on the newborn.
The message doesn’t need to describe a perfect big sibling. If your child has had a difficult week, choose one true, ordinary detail. Their Christmas letter doesn’t have to become a report on how well they’re adjusting.
Should Santa Announce the New Baby?
Tell your child the news yourself before using Santa in the celebration. That gives them someone familiar to ask about where the baby will sleep or what will happen while you’re at the hospital.
Cleveland Clinic’s sibling-preparation guidance encourages ongoing conversations and practical ways to involve children. Using Santa’s letter after those conversations is a holiday-writing choice, rather than a pediatric recommendation about Santa.
If you’re considering Christmas pregnancy announcement ideas for relatives, your older child could help reveal news they already understand. They might hold a family photo or hand Grandma an announcement card.
A Santa pregnancy announcement letter addressed to the child serves a different purpose: it introduces information they may need help understanding. Keep that first conversation with you, then let the Christmas message recognize their part in getting ready.
How to Set Up a Letter From Santa for a New Big Sister or Brother
Start with a real moment, then add details that belong only to your older child. Santa’s Magical Kingdom’s Letters from Santa form collects information such as interests, a proud moment, Christmas wishes, and an optional friend or sibling.
Gather these details before you start:
- A specific moment: What did your child actually do?
- A current interest: What are they enjoying besides becoming a sibling?
- The sibling’s name, if known: Include it only when the name is settled and your child knows it.
If the Baby Is Due Soon
Choose something your child has already done to prepare. Picking a coming-home outfit or drawing a welcome picture gives you a clear detail without inventing a future event.
You could enter: “Mia chose yellow socks for the baby and drew a picture for the nursery.” Add her current interest elsewhere, such as building dinosaur houses with blocks.
Keep the information focused on preparations your child already understands. Don’t turn the form into a request to reveal the pregnancy.
If the Baby Is Already Here
Use a moment from life together: “Leo sang his favorite bus song to Theo while we were getting ready to leave.” That tells you more than “Leo has been a good big brother.”
When ordering for several older children, prepare different details for each. Check the current age options before ordering for a toddler, and ask the team if your child’s age isn’t listed. Enter their actual age.
An adult should complete the form and check spellings, relationships, and wishes before submitting. Keep birth plans, medical information, and private family circumstances out of the personalization details.
Create a Letter That Puts Your Big Kid First
Words That Help and Words to Skip
Praise a specific action without making the child responsible for the baby. A Christmas message can recognize kindness without adding instructions about being quiet, sharing everything, or never asking for help.
| Try wording like this | Leave out wording like this |
| “I heard you chose yellow socks for your baby sister.” | “You must be extra good now that the baby is here.” |
| “Your dinosaur drawings sound wonderful.” | “The baby is your Christmas present this year.” |
| “Your family told me about the song you sang to Theo.” | “Big brothers don’t cry or need cuddles.” |
| “I hope you enjoy some Christmas stories together.” | “It’s your job to keep the baby happy.” |
Use the left column as inspiration for the details you provide or for a short note you write yourself. These are wording examples, rather than promises about the exact text an ordered letter will contain.
A Short Example Before the Baby Arrives
Dear Mia,
Merry Christmas! I heard you chose yellow socks for your new baby brother. You put such thought into getting ready to meet him. Your dinosaur drawings have reached my list too. I hope your Christmas includes a favorite story and time to build something wonderful.
Love, Santa
A Short Example After the Baby Arrives
Dear Leo,
Your family told me you sang the bus song to Theo this week. What a lovely thing to share with him. I also heard you’re learning to ride your scooter. I hope you have plenty of Christmas fun and some time to show your family what you’ve learned.
Love, Santa
Time the Letter Around Your Due Date
Prepare the details early, but choose a calm moment to share the letter. If your due date falls near Christmas, write down the proud moment now so you aren’t trying to remember it during the hospital week.
When preparing a toddler for a new baby at Christmas, keep the letter separate from practical explanations about your absence. Talk directly about who will look after them and when you’ll be home.
Santa’s Magical Kingdom offers email and printed-and-mailed delivery options. Email avoids postal transit, though you’ll still need to check processing and delivery terms. A mailed letter needs enough time to arrive before your planned reveal.
Check the current Santa letter shipping guidance before choosing your date. Don’t make the hospital homecoming depend on a delivery arriving that morning.
Once you have the letter, read it when you can sit together without rushing. For a younger child, read aloud and pause at the familiar detail. Keep the letter afterward with a dated photo or drawing from that Christmas.
Give the Older Child a Santa Moment at the Kingdom
For families near St. Louis, a visit to Santa’s Magical Kingdom in Eureka can add an outing to the letter. The drive-through lights let your family experience the display in your own vehicle.
You might choose the lights alone, or add a Santa visit for the older child. There’s no need to fit every activity into the same evening.
Santa’s Magical Kingdom currently lists professional Santa photos inside Kringle’s General Store from November 20 through December 23. Its Santa visit details explain that finished digital photos arrive by text and that personal photography isn’t permitted during the visit.
If two adults attend, one could accompany the older child while the other cares for the baby. Give your child time to talk about their own Christmas wishes without asking them to pose as a helper throughout the visit.
Family-vehicle admission currently costs $35 Sunday through Friday and $40 on Saturdays, including tax. Admission is cash only, paid as you exit; check current visiting information before leaving home.
Families outside Missouri can keep the celebration at home with the letter and time together.
Choose an Ornament That Records the Family This Year
A family ornament can accompany the letter as a gift for a new big sibling. It records the family growing, while the letter preserves a detail about the older child’s year.
Kringle’s General Store lists handwritten personalized ornaments for $18.95, with hundreds of styles, including family ornaments. Choose from the available designs and confirm which names and wording fit before purchasing.
Let your older child help choose the style. A family design with room for everyone’s names can include the baby without making the older child’s keepsake entirely about the new arrival.
The store has no separate entrance, so plan shopping as part of a Kingdom visit. For ways to store the letter alongside the ornament, see our guide to Christmas keepsake gifts for kids.
Questions About Santa and a New Sibling
When should we tell our toddler about the new baby?
Introduce the idea before the birth, then return to it as questions arise. Cleveland Clinic suggests using familiar examples, books, and preparations to help children understand what babies are like.
Can I read the letter aloud if my child can’t read yet?
Read it together and pause at the details your child recognizes. They can hear their name and favorite activity without needing to read the words themselves.
What if we haven’t chosen the baby’s name?
Leave the optional sibling field blank rather than guessing. Use the proud-moment field for something your child has already done, such as drawing a welcome picture.
What if the new siblings are twins?
Describe the family relationship accurately and keep the older child as the letter’s focus. If the form can’t accommodate both names clearly, ask the team before ordering.
What if my child doesn’t like being called a big sister or brother?
Use their name and a familiar interest instead of emphasizing the new title. You can celebrate their Christmas without asking them to sound excited about becoming a sibling.
What if my toddler acts younger around Christmas?
The AAP notes that some children temporarily return to earlier behaviors after a sibling arrives. Keep Santa’s message encouraging, and leave out comments about being “too big” for comfort or help.
Can I order for a 2-year-old big sibling?
Check the form’s current age options before ordering. If age 2 isn’t listed, ask the team about availability rather than entering a different age.
Should the baby get a letter from Santa too?
A newborn’s letter would primarily be a family keepsake. Give the older child their own reading moment, whether or not you also save a letter in the baby’s book.
Can grandparents give the big sibling’s letter?
Grandparents can make the letter their gift and coordinate delivery with a parent. Ask the parent to complete the form using current interests, a recent moment, and accurate family names.
Should two older siblings share one Santa letter?
Give each older child a separate message if you want individual recognition. Choose a different moment and interest for each, rather than repeating the same praise with different names.
Does email delivery mean the letter arrives instantly?
Email avoids postal transit, but that doesn’t establish an instant turnaround. Check the current processing and delivery terms before planning a particular morning or evening around its arrival.
Is a drive-through light show OK with a newborn?
The drive-through takes place in your own vehicle, but that doesn’t establish whether an outing suits your newborn. Plan around their care needs and discuss individual concerns with your pediatrician.
Give Your Big Kid Something Addressed Only to Them
Build a letter from Santa for a new big sister or brother around one thing they did and one thing they love. Add the sibling connection where it fits, then leave space for the child they already are.
