Baby Cocoon Patterns

Burgundy Shark Sleep Sack Crochet Free Pattern

AppPairing: Palette Harmonies & Texture Combinations • October 28, 2026
Burgundy Shark Sleep Sack Crochet Free Pattern

Burgundy Shark Sleep Sack Crochet Free Pattern

Introduction

This cozy shark sleep sack is a sweet, snuggly cocoon for toddlers, and it makes an adorable photo prop for shark-themed newborn or birthday shoots. Worked in soft bamboo cotton in a rich burgundy with a gold shark face in tapestry crochet, it looks playful and feels wonderfully smooth against the skin. The simple straight-cylinder shape means no increasing or decreasing, so it is a genuinely beginner-friendly project. A little gold dorsal fin on the back finishes it off with a cheeky touch.

Materials Needed

  • Yarn: Worsted weight (4) bamboo cotton, 100% bamboo, 200 yards per 100 g skein.
    • Color A (Burgundy): 250 yards
    • Color B (Gold): 50 yards
  • Hook: 5.0 mm (H-8) crochet hook
  • Notions: Stitch marker, tapestry needle, scissors
  • Finished size: Width 12 inches (30 cm) flat, circumference 24 inches (61 cm), height 24 inches (61 cm)

Abbreviations

  • ch – chain
  • sc – single crochet
  • sc2tog – single crochet two stitches together (a decrease)
  • st(s) – stitch(es)
  • rnd(s) – round(s)
  • A / B – Color A (Burgundy) / Color B (Gold)

Gauge

16 sts and 16 rnds = 4 inches (10 cm) in single crochet. Work a small swatch in the round and measure it flat to check your gauge before starting.

Tips Before You Start

  • Work in continuous rounds (no joining, no turning) and use a stitch marker to track the start of each round.
  • For the tapestry crochet face, carry the unused color along the inside of the work and keep the floats relaxed so the cocoon stays stretchy.
  • Count your stitches at the end of every round — the body stays at 48 sts throughout, so any drift is easy to spot.
  • Keep your tension even where you change colors so the gold motif sits flat and does not pucker.

Step-by-Step Instructions

Cocoon (Color A, with Color B motifs)

Setup: With A, ch 48 and join with a slip stitch to form a ring, being careful not to twist.

Rnd 1: sc in each ch around (48 sts).

Rnds 2–6: sc in each st around (48 sts).

Rnds 7–14: Work the shark face in tapestry crochet following the chart below, changing to B as indicated (48 sts each round).

Rnds 15–30: sc in each st around in A (48 sts).

Rnds 31–34: Work the small gold mark in tapestry crochet following the chart below (48 sts each round).

Rnds 35–40: sc in each st around in A (48 sts). Fasten off.

Shark Face Chart (tapestry crochet, front)

Each round is written as four repeats of 12 stitches. Work the stitches in the color listed, in order.

Rnd 7: [A x6, B x1, A x5] x4 (48 sts)

Rnd 8: [A x5, B x3, A x4] x4 (48 sts)

Rnd 9: [A x4, B x5, A x3] x4 (48 sts)

Rnd 10: [A x3, B x7, A x2] x4 (48 sts)

Rnd 11: [A x2, B x9, A x1] x4 (48 sts)

Rnd 12: [A x1, B x11] x4 (48 sts)

Rnd 13: [B x12] x4 (48 sts)

Rnd 14: [A x1, B x11] x4 (48 sts)

Rnds 31–34: [A x1, B x1, A x10] x4 (48 sts) — repeat this same sequence for all four rounds.

Dorsal Fin (Color B)

Row 1: Ch 6, sc in 2nd ch from hook and each ch across (5 sts).

Row 2: sc2tog, sc, sc2tog (3 sts).

Row 3: sc2tog, sc (2 sts).

Row 4: sc2tog (1 st). Fasten off.

Edging

Top opening: With A, sc evenly around the top opening (48 sts). Fasten off.

Assembly and Finishing

Sew the dorsal fin to the back of the cocoon at center, about 4 inches (10 cm) below the top edge, using Color B and a tapestry needle. Weave in all ends on the inside of the work. Block gently to the finished measurements — width 12 inches flat, height 24 inches — by misting lightly and laying flat to dry, shaping the top opening as it dries.

Pro Tips and Variations

  • Swap the gold for a soft grey or white for a more classic shark look, or use a brighter contrast for a bolder photo prop.
  • Add a second small fin or a simple tail shape at the bottom edge for extra shark character.
  • For a larger toddler size, add a few extra plain rounds before the top edging — the stitch count stays at 48, so the width is unchanged.

Also Check Out: We think you'd love this beautiful pattern on our sister site: Bleach Spot Half-Moon Crochet Bag Free Pattern: A Grunge Crescent Crossbody