Baby Knitting Patterns

Whispering Willow Preemie Cocoon & Hat Set Free Pattern

Anonymous • August 25, 2026

Introducing the Whispering Willow Preemie Cocoon & Hat Set

There is nothing more precious than a tiny new life, and nothing more comforting than a handmade gift wrapped around them. The Whispering Willow Preemie Cocoon & Hat Set is a beautifully textured, leaf-inspired pattern designed specifically for the smallest of miracles. Worked in a dense, smooth single crochet, this set creates a snug, safe haven that mimics the gentle embrace of a willow's shade.

This pattern is perfect for intermediate beginners who are comfortable with basic crochet stitches and simple increases/decreases. The construction is intuitive—worked from the bottom up for the cocoon and top down for the hat—making it a rewarding, quick project. The muted sage green paired with a delicate cream ruffle on the hat gives it a soft, organic, and utterly heartwarming aesthetic.

Whether you are crafting for a hospital donation, a baby shower, or a personal keepsake, this set is a beautiful way to show love in its most tangible form. Let's dive into the materials and step-by-step instructions to create this heirloom-quality set.

Materials Needed

Before you begin, gather the following supplies. Using the exact hook sizes and yarn weight is crucial for achieving the correct gauge and the soft, pliable drape shown in the photos.

Yarn

Main Color (MC): DK weight (light worsted) baby yarn in a soft sage green. You will need approximately 220 yards.
Contrast Color (CC): A small amount of cream yarn for the hat trim (approximately 10-15 yards).

Hooks & Notions

Larger Hook: US Size 6 (4.0 mm) crochet hook for the cocoon.
Smaller Hook: US Size 5 (3.75 mm) crochet hook for the hat.
Yarn needle for weaving in ends.
Stitch markers (optional, but helpful for counting rounds).
Scissors.

Gauge

18 single crochet (sc) x 20 rows = 4 inches using the larger hook (4.0 mm). Always check your gauge to ensure the correct size for a preemie.

Step-by-Step Instructions

This pattern is written in US crochet terms. The cocoon is worked in continuous rounds joined with a slip stitch at the end of each round. The hat is worked similarly but uses a smaller hook for a snugger fit.

Part 1: The Cocoon (Worked from the Bottom Up)

The cocoon starts with a magic ring and increases evenly to create a flat, circular base. Then, you will work even rounds to create the body, followed by a mirrored decrease to gently taper the top opening.

Round 1: With the larger hook (4.0 mm) and sage yarn, make a magic ring. Chain 1 (does not count as a stitch), work 8 single crochet (sc) into the ring. Pull the tail to tighten the ring closed. Join with a slip stitch (sl st) to the first sc. (8 stitches)

Round 2: Chain 1. Work 2 sc in each stitch around. Join with a sl st to the first sc. (16 stitches)

Round 3: Chain 1. *Work 2 sc in the next stitch, sc in the next stitch.* Repeat from * to * around. Join with a sl st. (24 stitches)

Round 4: Chain 1. *Work 2 sc in the next stitch, sc in the next 2 stitches.* Repeat from * to * around. Join. (32 stitches)

Round 5: Chain 1. *Work 2 sc in the next stitch, sc in the next 3 stitches.* Repeat from * to * around. Join. (40 stitches)

Round 6: Chain 1. *Work 2 sc in the next stitch, sc in the next 4 stitches.* Repeat from * to * around. Join. (48 stitches)

Round 7: Chain 1. *Work 2 sc in the next stitch, sc in the next 5 stitches.* Repeat from * to * around. Join. (56 stitches)

Round 8: Chain 1. *Work 2 sc in the next stitch, sc in the next 6 stitches.* Repeat from * to * around. Join. (64 stitches)

Round 9: Chain 1. *Work 2 sc in the next stitch, sc in the next 7 stitches.* Repeat from * to * around. Join. (72 stitches)

Round 10: Chain 1. *Work 2 sc in the next stitch, sc in the next 8 stitches.* Repeat from * to * around. Join. (80 stitches)

Your circular base is now complete. It should measure approximately 5.5 inches in diameter.

Rounds 11-20: Chain 1. Work 1 sc in each stitch around. Join with a sl st to the first sc. (80 stitches each round)

These even rounds create the tall, cylindrical body of the cocoon. The fabric will naturally begin to curve inward slightly, which is perfect for swaddling.

Round 21 (Decrease Round): Chain 1. *Sc in the next 8 stitches, single crochet 2 together (sc2tog).* Repeat from * to * around. Join. (72 stitches)

Round 22: Chain 1. *Sc in the next 7 stitches, sc2tog.* Repeat from * to * around. Join. (64 stitches)

Round 23: Chain 1. *Sc in the next 6 stitches, sc2tog.* Repeat from * to * around. Join. (56 stitches)

Round 24: Chain 1. *Sc in the next 5 stitches, sc2tog.* Repeat from * to * around. Join. (48 stitches)

Round 25: Chain 1. *Sc in the next 4 stitches, sc2tog.* Repeat from * to * around. Join. (40 stitches)

Round 26: Chain 1. *Sc in the next 3 stitches, sc2tog.* Repeat from * to * around. Join. (32 stitches)

Round 27: Chain 1. *Sc in the next 2 stitches, sc2tog.* Repeat from * to * around. Join. (24 stitches)

Round 28: Chain 1. *Sc in the next stitch, sc2tog.* Repeat from * to * around. Join. (16 stitches)

Round 29: Chain 1. *Sc2tog.* Repeat from * to * around. Join. (8 stitches)

Finishing the Cocoon: Fasten off, leaving a long tail (approximately 12 inches). Thread the tail onto a yarn needle. Weave the needle through the front loops of the remaining 8 stitches. Pull tight to cinch the bottom closed completely. Secure with a knot and weave in all ends thoroughly.

Part 2: The Hat (Worked from the Top Down)

Using the smaller hook (3.75 mm) creates a denser fabric for the hat, ensuring it stays snugly on a tiny head. The hat follows a similar increase pattern but is shorter and finishes with a delicate cream ruffle.

Round 1: With the smaller hook and sage yarn, make a magic ring. Chain 1, work 6 sc into the ring. Pull tight and join with a sl st to the first sc. (6 stitches)

Round 2: Chain 1. Work 2 sc in each stitch around. Join. (12 stitches)

Round 3: Chain 1. *Work 2 sc in the next stitch, sc in the next stitch.* Repeat from * to * around. Join. (18 stitches)

Round 4: Chain 1. *Work 2 sc in the next stitch, sc in the next 2 stitches.* Repeat from * to * around. Join. (24 stitches)

Round 5: Chain 1. *Work 2 sc in the next stitch, sc in the next 3 stitches.* Repeat from * to * around. Join. (30 stitches)

Round 6: Chain 1. *Work 2 sc in the next stitch, sc in the next 4 stitches.* Repeat from * to * around. Join. (36 stitches)

The crown of the hat is now complete. It should measure about 4 inches across.

Rounds 7-12: Chain 1. Work 1 sc in each stitch around. Join with a sl st to the first sc. (36 stitches each round)

These six even rounds form the body of the hat, covering the head and ears.

Round 13 (Color Change): With the cream yarn (CC), chain 1. Work 1 sc in each stitch around. Join with a sl st to the first sc. (36 stitches)

Round 14 (Ruffle Edge): Chain 1. *Sc in the next 2 stitches, work 2 sc in the next stitch.* Repeat from * to * around. Join with a sl st to the first sc. (48 stitches)

This increase round creates a gentle, flared ruffle at the brim of the hat, adding a sweet, delicate finish.

Finishing the Hat: Fasten off and weave in all ends securely. The ruffle will naturally curl outward.

Final Assembly & Care

Your Whispering Willow set is now complete! Gently hand wash the pieces in cool water with a mild baby-safe detergent, and lay them flat to dry to maintain their shape. The soft sage and cream combination makes this a timeless gift that will be treasured for years to come.

Happy crafting, and thank you for bringing comfort to a precious little one.

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