My sister called me in a panic three weeks before her baby shower. She had seen the most adorable starfish cocoon online and wanted one for her newborn photos. “Can you make that?” she asked, and I heard the hope in her voice. I stayed up way too late that night sketching star shapes on graph paper and doing math I never thought I would use again.
The result is this pattern, and I am honestly a little obsessed with how it turned out. There is something about watching a baby nestle into a star shape that makes every single hour of work completely worth it. My niece wore hers for her newborn photos, and those pictures are still framed in my sister’s living room two years later.
This cocoon wraps snugly around a newborn with five points forming a perfect star silhouette when laid flat. The matching pixie hat has that tall pointed top that echoes the star body. Two coconut shell buttons make dressing and undressing easy, and the whole set works up in that satisfying mint green and white stripe combination that photographs beautifully.
Pattern Overview and Skill Level
This starfish baby cocoon crochet pattern is rated intermediate. Before you close this tab, let me explain what that actually means. The individual stitches are completely beginner level. You will only use single crochet (sc), which is the most basic stitch in the crochet world. What bumps this up to intermediate is managing two yarn colors at once, following shaping sequences accurately, and assembling the three-dimensional cocoon from flat pieces.
If you have completed at least one shaped project and feel comfortable reading row-by-row instructions, you can absolutely do this. I promise.
The construction method is clever and much easier than trying to work a five-pointed star from a single foundation. You will make a main body panel first, then create five separate star points and attach them. Think of it like building with blocks rather than sculpting from one piece of clay.
Time estimate:
- Cocoon body: approximately 8 to 12 hours
- Hat: approximately 2 to 3 hours
- Finishing and assembly: approximately 1 hour
- Total: 11 to 16 hours
Ready to turn a little one into the cutest starfish on the beach?
Finished Size
Cocoon: approximately 18 inches wide point to point (45 cm) and 13 inches tall from bottom point to top of neck opening (33 cm). Fits newborns from birth to approximately 3 months, accommodating babies up to approximately 10 pounds (4.5 kg).
Hat: approximately 13 inch head circumference (33 cm), fitting a newborn head.
The cocoon lays flat as a star shape. When the center front is buttoned closed, it forms a snug wrap around the baby’s torso, with the five star points extending outward.
Materials You Will Need
Yarn: Worsted weight (Category 4), smooth cotton or cotton-blend yarn
- Color A (Mint green): approximately 350 yards (320 meters)
- Color B (White or cream): approximately 300 yards (275 meters)
- Total yarn needed: approximately 650 yards (595 meters) across both colors
Hook: US size G-6 (4.0 mm) crochet hook, or size needed to obtain gauge
Notions:
- 2 coconut shell buttons, approximately 1 inch (25 mm) diameter
- Yarn needle for weaving ends
- Scissors
- Stitch markers (at least 5)
- Straight pins for blocking
Yarn Suggestions
Lion Brand 24/7 Cotton in Mint and White is my top pick. This 100 percent mercerized cotton is machine washable, holds its shape beautifully, and produces crisp stripes. It is gentle against newborn skin since it contains no wool or synthetic content.
Paintbox Yarns Simply DK works well when held slightly loosely or on a G hook. This smooth cotton-acrylic blend comes in a wide range of colors and is affordable and widely available internationally.
Cascade Yarns Ultra Pima Cotton in Sage and Natural is a premium option with a subtle sheen and lovely drape. Machine washable on a gentle cycle.
Avoid fuzzy, textured, or chunky yarns as they will obscure the stripe pattern and alter the gauge. Always work a gauge swatch before beginning.
FYI, mercerized cotton keeps those mint-and-white stripes looking sharp in photos.
Gauge
18 single crochet stitches and 20 rows = 4 inches (10 cm) worked flat in single crochet with Color A, using a G-6 (4.0 mm) hook, after blocking.
Gauge is critical for this pattern. The star points and cocoon sizing are calculated based on this gauge. A swatch that is too loose will produce an oversized cocoon that will not hold a newborn snugly. A swatch that is too tight will produce a cocoon too small to fit comfortably.
Abbreviations and Stitch Definitions
- ch: chain
- sc: single crochet, which means insert hook into stitch, yarn over, pull up a loop (2 loops on hook), yarn over, pull through both loops
- sc2tog: single crochet two stitches together (decrease)
- inc: increase, meaning work 2 single crochet into the same stitch
- sl st: slip stitch
- st(s): stitch(es)
- RS: right side
- WS: wrong side
- sk: skip
- sp: space
- rep: repeat
- pm: place marker
- rem: remaining
Special Techniques
Two-Color Stripe Carry Method
This pattern uses two colors worked in alternating two-row stripes. Rather than cutting the yarn at each color change, both yarns are carried up the side of the work.
To carry: when switching colors at the end of a row or round, draw the new color through the last two loops of the final stitch of the current row, leaving the old color hanging at the side. On flat rows, carry the unused yarn loosely up the right edge. On rounds, carry the unused yarn inside the work by laying it along the top of the previous round’s stitches and crocheting over it for 3 to 4 stitches before letting it hang until the next switch.
This avoids long floats and keeps the wrong side tidy.
Pattern Instructions
Part 1: Main Cocoon Body Panel
The body is a flat rectangle that is seamed into an open-top tube. The front opening runs vertically.
With Color A and a G-6 hook, chain 63.
Foundation Row (WS): sc into 2nd ch from hook and into each ch across. Turn. (62 sc)
Row 1 (RS): ch 1, turn, sc in each st across. (62 sc)
Row 2 (WS): ch 1, turn, sc in each st across. (62 sc)
Switch to Color B at the end of Row 2 by drawing Color B through the last 2 loops of the last st.
Row 3 (RS): ch 1, turn, sc in each st across. (62 sc)
Row 4 (WS): ch 1, turn, sc in each st across. (62 sc)
Switch to Color A.
Continue in this 2-row stripe sequence (2 rows Color A, 2 rows Color B) until the panel measures approximately 9 inches (23 cm) from the foundation row. This will be approximately 46 rows total.
Checkpoint: After completing the main body panel, the piece should measure 9 inches (23 cm) tall and approximately 13.8 inches (35 cm) wide.
Body Shaping at Base
Work a slight curve at the bottom of the body to create a rounded base rather than a flat bottom seam.
Shaping Row 1 (RS): ch 1, turn, sc in first 27 sts, sc2tog, sc2tog, sc in rem 29 sts. (60 sc)
Shaping Row 2 (WS): ch 1, turn, sc in first 26 sts, sc2tog, sc2tog, sc in rem 28 sts. (58 sc)
Shaping Row 3 (RS): ch 1, turn, sc in first 25 sts, sc2tog, sc2tog, sc in rem 27 sts. (56 sc)
Shaping Row 4 (WS): ch 1, turn, sc in first 24 sts, sc2tog, sc2tog, sc in rem 26 sts. (54 sc)
Shaping Row 5 (RS): ch 1, turn, sc in first 23 sts, sc2tog, sc2tog, sc in rem 25 sts. (52 sc)
Shaping Row 6 (WS): ch 1, turn, sc in first 22 sts, sc2tog, sc2tog, sc in rem 24 sts. (50 sc)
Fasten off, leaving a 24-inch tail for seaming.
Fold the panel in half lengthwise, right sides together, matching the two short ends (these become the back seam). Using the yarn tail and yarn needle, whipstitch the back seam closed along the full length of the long edge. Then whipstitch the base curved shaping closed. Turn right side out.
Checkpoint: The seamed body tube should measure approximately 9 inches (23 cm) tall and approximately 6.5 inches (16.5 cm) in diameter at the widest point.
Part 2: Star Points (Make 5)
Each point is a triangular flat piece. Work all five points using the same stripe sequence.
With Color A, chain 3, sl st to join into a ring (or use a magic ring).
Round 1: ch 1, work 3 sc into ring, do not join, work in continuous rounds and place a marker at the center st. (3 sc)
Row 2 (now working in rows for flat triangle): ch 1, turn, inc in first st, sc in center st, inc in last st. (5 sc)
Row 3: ch 1, turn, sc across. (5 sc)
Switch to Color B and continue the two-row stripe sequence while increasing at each end every other row until the base reaches 21 stitches. Fasten off, leaving a long seaming tail.
Each finished point measures approximately 4.5 inches (11.5 cm) tall from tip to base, and approximately 4.6 inches (11.7 cm) wide at the base. Make all 5 points.
Part 2A: Attaching the Star Points
Lay the seamed body tube flat with the back seam centered at the back.
Identify five attachment positions around the body tube:
- Top center back: the top point (becomes the hood extension)
- Upper left and upper right (approximately 60 to 70 degrees from top): the two arm side points
- Lower left and lower right (approximately the lower third of the tube): the two leg points
Pin each star point to the outside of the body tube at its base (the 21-stitch wide edge) aligning the base of the point with the body surface. Using a yarn needle and matching yarn, whipstitch each point base firmly to the body, distributing the 21 stitches of the point base along approximately 4 to 5 inches of body surface.
Part 3: Button Band
Right Front Band (buttonhole band):
With RS facing and Color A, join yarn at the bottom right front edge.
Pickup Row: sc evenly along the right front opening edge, picking up approximately 1 sc for every row end, for a total of approximately 46 sc along the edge. (46 sc)
Band Row 1: ch 1, turn, sc in each st across. (46 sc)
Band Row 2 (Buttonhole Row): ch 1, turn, sc in first 10 sts, ch 2, sk 2 sts (first buttonhole made), sc in next 22 sts, ch 2, sk 2 sts (second buttonhole made), sc in rem 10 sts. (46 sts including ch-2 sps)
Band Row 3: ch 1, turn, sc in each st and 2 sc into each ch-2 sp across. (46 sc)
Band Row 4: ch 1, turn, sc in each st across. (46 sc)
Fasten off. Weave in ends.
Left Front Band (button band):
With RS facing and Color A, join yarn at the top left front edge. Work four rows of single crochet. Sew two coconut shell buttons onto the left front band so they line up with the buttonholes.
Part 4: Neck Band and Hood Rim
With RS facing and Color A, join yarn at the back right of the neck opening. Work two rounds of single crochet evenly around the neck opening to create a neat finished edge.
Part 5: Pixie Star Hat
The matching pixie hat is worked in the same stripe sequence, starting with a simple rectangle that is seamed into a tall pointed cone. Shape the tip by decreasing gradually, then add a small star point or ear-like tip if desired. Finish with a simple ribbed or single crochet brim that sits snugly on a newborn head.
Block the entire set so the stripes look crisp and the star points sit flat and even.
FAQ’s
Is this safe for real newborns?
Yes, when made with soft, baby-safe yarn and used only for supervised photo sessions. Never leave a baby unattended in any cocoon.
Can I change the colors?
Absolutely. Soft pastels, ocean blues, or even soft yellows look gorgeous. Just keep the contrast strong enough so the stripes still show.
Do the star points stay in place?
When sewn firmly along the full base, yes. Pin carefully first and take your time with the whipstitch for a secure attachment.
How do I wash the finished set?
Machine wash on gentle in cool water and lay flat to dry. Mercerized cotton holds up beautifully.
What if my stripes look uneven?
Carry the yarn loosely and keep your tension consistent. Blocking at the end helps even everything out.
Can beginners finish this?
If you know single crochet and can follow shaping instructions, you can do it. Take the color changes and assembly one step at a time.
Wrapping Up Your Mint Green Starfish Baby Cocoon
There you have it—a soft, snuggly starfish cocoon that turns any newborn into the cutest little sea star for photos. The stripe sequence is simple once you settle into the rhythm, the five points give that perfect silhouette, and those coconut buttons make it practical as well as adorable.
IMO, the moment you lay the finished piece flat and see the star shape appear is pure magic. Take your time attaching the points and enjoy every stitch. When that little one is finally nestled inside, you’ll know exactly why this pattern was worth the late-night math.
Happy crocheting, friend. May your next photo session be full of tiny starfish smiles.
