Think star-shaped baby cocoons look impossibly complicated? I promise you they’re not. This stunning rainbow granny square baby cocoon is built on the most classic crochet technique there is: the humble granny square. If you can work a basic granny square, you can absolutely make this showstopper.
Here’s the truth that experienced crocheters know: complex-looking projects are often just simple stitches repeated strategically. This cocoon is exactly that. You’ll work two large granny square panels, shape them into stars with a straightforward border round, then join them together. No advanced shaping. No confusing construction. Just granny clusters worked round after round until magic happens.
Whether you’re an intermediate crocheter ready to tackle something impressive or a confident beginner looking to level up, this pattern breaks everything down into manageable chunks. I’ll walk you through every round, every color change, and every finishing detail. By the end, you’ll have an absolutely adorable star-shaped cocoon that makes the perfect newborn gift or photo prop.
Why This Baby Cocoon Pattern Works So Well
The genius of this design lies in its simplicity. A granny square naturally has four corners. Those four corners become four of your five star points. The fifth point? That’s where the hood attaches at the top. No complicated increases or decreases required.
The cocoon wraps snugly around a newborn to three-month-old baby, with their head peeking out from the cozy hood, arms extending into the upper points, and legs nestled into the lower points. It’s functional as a swaddle and absolutely irresistible for those first precious photos.
The rainbow color sequence creates that beautiful retro granny square aesthetic that’s incredibly popular right now. And that solid teal border? It defines the star silhouette beautifully while giving the whole piece a polished, finished look.
Skill Level
This pattern is rated intermediate. You should be comfortable with working in the round from a magic ring, the granny square cluster stitch, joining rounds, reading stitch counts carefully, seaming two flat panels, and basic hat construction. If you’ve made a granny square blanket before, you have all the skills you need.
Finished Measurements
Size: Newborn to 3 months (fits babies approximately 6 to 12 pounds)
Materials Needed
Yarn: Worsted weight (weight category 4), 100 percent acrylic or acrylic-cotton blend, machine washable. You will need approximately 1400 yards total across all colors.
Color breakdown:
Recommended Yarns:
1. Lion Brand Pound of Love: excellent stitch definition, widely available, budget-friendly
2. Paintbox Yarns Simply DK (hold two strands together to meet gauge): very soft against baby skin
3. Bernat Softee Baby: specifically designed for baby items, extra soft, machine washable
Hook: US Size J-10 / 6.0 mm
Notions:
Gauge
One complete granny square motif (4 rounds of double crochet clusters) equals 4 inches square, blocked.
Gauge is important for this project. If your gauge is loose, the cocoon will be too large and floppy. If tight, it will be too small and stiff. Make a test swatch and adjust your hook size as needed.
Abbreviations and Special Stitches
Let me break down every stitch you’ll need:
beg = beginning
ch = chain (wrap yarn over hook, pull through loop on hook)
ch-sp = chain space (the gap created by a chain in the previous round)
dc = double crochet (yarn over, insert hook, pull up loop, yarn over and pull through 2 loops twice)
MR = magic ring (adjustable ring that closes tightly at center)
rnd = round
RS = right side
sc = single crochet (insert hook, pull up loop, yarn over and pull through both loops)
sk = skip
sl st = slip stitch (insert hook, yarn over, pull through both loops at once)
sp = space
st(s) = stitch(es)
WS = wrong side
yo = yarn over
Granny Cluster (cl)
This is the building block of the entire pattern. Here’s exactly how to work one:
1. Yarn over the hook
2. Insert hook into the designated chain space or stitch
3. Yarn over and pull up a loop (3 loops on hook)
4. Yarn over and draw through 2 loops (2 loops remain)
5. Work 2 more double crochet stitches into the same space
Result: One cluster equals 3 double crochet stitches all worked into the same space.
Granny Corner
Work (cl, ch 2, cl) all into the same corner chain-2 space. This creates one corner unit: two clusters separated by a chain-2 space.
Color Sequence for Panels
Follow this sequence for Rounds 1 through 16:
Pattern Instructions
Front Panel and Back Panel (Make 2)
Note: Both panels are worked identically through Round 16. The front panel gets a button band added later.
Begin with MR.
Round 1 (Color A):
Ch 3 (counts as first dc of first cl throughout). Work 2 dc into MR (first cl made). Ch 2. Work (cl, ch 2) 3 more times into MR. Join with sl st to top of beg ch-3. Pull MR closed.
(4 cl, 4 ch-2 sps)
Round 2 (Color B):
Join Color B with sl st into any ch-2 corner sp.
Ch 3, work 2 dc into same sp (first cl). Ch 2. Work 1 more cl into same sp (corner made). Ch 1. Rep (cl, ch 2, cl into next ch-2 corner sp, ch 1) around. Join with sl st to top of beg ch-3.
(8 cl, 4 ch-2 corner sps, 4 ch-1 side sps)
Round 3 (Color C):
Join Color C into any ch-2 corner sp.
Ch 3, 2 dc into same sp, ch 2, cl into same sp (corner). Ch 1. Cl into next ch-1 side sp. Ch 1. Rep (corner in ch-2 sp, ch 1, cl in ch-1 sp, ch 1) around. Join.
(12 cl, 4 ch-2 corner sps, 8 ch-1 side sps)
Round 4 (Color D):
Join Color D into any ch-2 corner sp.
Corner in corner sp. Ch 1. (Cl in next ch-1 sp, ch 1) twice. Rep (corner, ch 1, cl, ch 1, cl, ch 1) around. Join.
(16 cl, 4 ch-2 corner sps, 12 ch-1 side sps)
Round 5 (Color E):
Join Color E into any ch-2 corner sp.
Corner in corner sp. Ch 1. (Cl in next ch-1 sp, ch 1) 3 times. Rep (corner, ch 1, cl, ch 1, cl, ch 1, cl, ch 1) around. Join.
(20 cl, 4 ch-2 corner sps, 16 ch-1 side sps)
Round 6 (Color F):
Join Color F into any ch-2 corner sp.
Corner in corner sp. Ch 1. (Cl in next ch-1 sp, ch 1) 4 times. Rep around. Join.
(24 cl, 4 ch-2 corner sps, 20 ch-1 side sps)
Round 7 (Color G):
Join Color G into any ch-2 corner sp.
Corner. Ch 1. (Cl, ch 1) 5 times across side. Rep around. Join.
(28 cl, 4 ch-2 corner sps, 24 ch-1 side sps)
Round 8 (Color A):
Join Color A into any ch-2 corner sp.
Corner. Ch 1. (Cl, ch 1) 6 times across side. Rep around. Join.
(32 cl, 4 ch-2 corner sps, 28 ch-1 side sps)
Checkpoint: After Round 8, your panel should measure approximately 8 inches from corner to corner diagonally. It should lie flat without curling.
Round 9 (Color B):
Corner. Ch 1. (Cl, ch 1) 7 times across side. Rep around. Join.
(36 cl, 4 ch-2 corner sps, 32 ch-1 side sps)
Round 10 (Color C):
Corner. Ch 1. (Cl, ch 1) 8 times across side. Rep around. Join.
(40 cl, 4 ch-2 corner sps, 36 ch-1 side sps)
Round 11 (Color D):
Corner. Ch 1. (Cl, ch 1) 9 times across side. Rep around. Join.
(44 cl, 4 ch-2 corner sps, 40 ch-1 side sps)
Round 12 (Color E):
Corner. Ch 1. (Cl, ch 1) 10 times across side. Rep around. Join.
(48 cl, 4 ch-2 corner sps, 44 ch-1 side sps)
Round 13 (Color G):
Corner. Ch 1. (Cl, ch 1) 11 times across side. Rep around. Join.
(52 cl, 4 ch-2 corner sps, 48 ch-1 side sps)
Round 14 (Color B):
Corner. Ch 1. (Cl, ch 1) 12 times across side. Rep around. Join.
(56 cl, 4 ch-2 corner sps, 52 ch-1 side sps)
Round 15 (Color C):
Corner. Ch 1. (Cl, ch 1) 13 times across side. Rep around. Join.
(60 cl, 4 ch-2 corner sps, 56 ch-1 side sps)
Checkpoint: After Round 15, your panel should measure approximately 18 to 19 inches from corner to corner diagonally.
Star Point Border (Round 16)
This is the critical round that transforms your granny square into a star. You’ll use single crochet only.
Round 16 (Color F):
Join Color F with sc into any ch-2 corner sp.
Work 2 more sc into same corner sp (3 sc total in corner).
Working across the side: sc into the top of each dc of each cluster AND into each ch-1 sp across. Each cluster has 3 dc tops, and each ch-1 sp receives 1 sc. For 14 side clusters with 13 ch-1 spaces: (14 x 3) + 13 = 55 sc across each side.
At each corner sp: work 5 sc into the ch-2 corner sp.
Work all 4 sides and all 4 corners. Join with sl st to first sc.
Total: (240 sc)
Mark the center sc of one side with a stitch marker. This is your "hood point anchor" for the top of the star.
Joining the Panels
Hold both panels with wrong sides together (right sides facing out). Using Color F and a tapestry needle, whip stitch the panels together following this plan:
Leave open:
Join all other edges.
Button Band (Front Panel Only)
Right side band:
With RS facing, join Color F at top center right of the opening.
Row 1: Work sc evenly down the right-center edge to the bottom center. Turn.
Row 2: Ch 1, sc in each sc to end. Turn.
Rows 3-4: Repeat Row 2. Fasten off.
Left side band with buttonholes:
Row 1: Join Color F at top, sc evenly to bottom. Turn.
Row 2: Ch 1, sc in first 2 sc. (Ch 2, sk 2 sc, sc in next 8 sc) 4 times. Ch 2, sk 2 sc, sc in last 2 sc. Turn.
Row 3: Ch 1, sc in each sc and 2 sc into each ch-2 sp across. Turn.
Row 4: Ch 1, sc in each sc to end. Fasten off.
Sew 5 buttons to the right band to correspond to buttonholes.
Hood
The hood is a rectangle worked in rows, then seamed and attached.
Hood Color Sequence:
Rows 1-9: Colors A, B, C, D, E, F, G, A, B (one color per row)
Row 10: Color F (border)
Foundation: Ch 46 with Color A.
Row 1 (Color A): Dc in 4th ch from hook and in each ch across. Turn.
(44 dc)
Rows 2-9: Ch 3 (counts as dc), dc in each dc across. Turn. Change color at beginning of each row per sequence.
(44 dc)
Seaming: Fold hood in half with RS together. Sl st through both layers along the short end to close the top. Turn RS out.
Attachment: Whip stitch the open bottom edge of the hood to the neck opening of the cocoon, easing evenly around the full 14-inch circumference.
Matching Pointed Hat (Optional)
Hat Color Sequence:
Rounds 1-2: Color A
Rounds 3-4: Color B
Rounds 5-6: Color C
Rounds 7-8: Color D
Rounds 9-10: Color E
Rounds 11-12: Color F
Round 13: Color G
Round 14: Color A
Brim Rounds 15-17: Color F
Begin with MR using Color A.
Round 1: Ch 1. Work 6 sc into MR. Join with sl st to first sc. Pull MR closed. (6 sc)
Round 2: Ch 1. Work 2 sc in each sc around. Join. (12 sc)
Round 3 (Color B): Ch 1. (Sc in first sc, 2 sc in next sc) around. Join. (18 sc)
Round 4: Ch 1. (Sc in each of first 2 sc, 2 sc in next sc) around. Join. (24 sc)
Round 5 (Color C): Ch 1. (Sc in each of first 3 sc, 2 sc in next sc) around. Join. (30 sc)
Round 6: Ch 1. (Sc in each of first 4 sc, 2 sc in next sc) around. Join. (36 sc)
Round 7 (Color D): Ch 1. (Sc in each of first 5 sc, 2 sc in next sc) around. Join. (42 sc)
Round 8: Ch 1. (Sc in each of first 6 sc, 2 sc in next sc) around. Join. (48 sc)
Round 9 (Color E): Ch 1. (Sc in each of first 7 sc, 2 sc in next sc) around. Join. (54 sc)
Round 10: Ch 1. Sc in each sc around. Join. (54 sc)
Round 11 (Color F): Ch 1. (Sc in each of first 8 sc, 2 sc in next sc) around. Join. (60 sc)
Rounds 12-14: Ch 1. Sc in each sc around. Join. Change colors per sequence. (60 sc)
Brim Round 15 (Color F): Ch 1. (Sc in each of first 9 sc, 2 sc in next sc) around. Join. (66 sc)
Rounds 16-17: Ch 1. Sc in each sc around. Join. Fasten off after Round 17. (66 sc)
Attach a 1.5-inch pompom to the top point using rainbow yarn scraps.
Finishing and Care
Weaving ends: Run each tail at least 1 inch in two directions to secure. The granny texture can cause short ends to work loose.
Blocking: Wet block by soaking in cool water for 15 minutes. Gently squeeze out water, roll in a towel, then pin flat with star points extended. Allow to dry completely.
Care: Machine wash cold on gentle cycle. Lay flat to dry. Do not tumble dry on high heat.
Size Customization
For 3-6 months: Work 2 additional rounds of granny square (Rounds 17 and 18) before the border round. Increase hat circumference to 16 inches by adding 2 more increase rounds.
For 6-9 months: Work 4 additional rounds of granny square and increase hat circumference to 17 inches.
You’ve Got This!
This rainbow granny square baby cocoon crochet pattern looks like it belongs in a magazine, but it’s built on techniques you likely already know. Take it one round at a time, trust your counting, and enjoy watching those beautiful colors stack up. The finished piece makes an absolutely unforgettable baby shower gift or newborn photo prop.
I hope you love making this as much as I loved designing it. Thank you so much for choosing this pattern for your next project. If you make one, I would absolutely love to see it! Tag me on Instagram or share in our Facebook group so we can all admire your work.
Don’t forget to save this pattern to your Pinterest boards so you can find it when you’re ready to cast on. And if you make this adorable star cocoon, please drop a comment below. I read every single one, and seeing your finished projects truly makes my day!
