Baby Blanket Knitting Patterns

The Ocean's Lullaby Blanket: A Free Knitting Pattern for a Sea Blue Baby Afghan from Lion Brand

Crochet Mode: Elevate Your Stitch Game • July 28, 2026

Introducing the Ocean's Lullaby Blanket

Wrap your little one in the serene beauty of the sea with this textured, modern baby blanket. Featuring a unique combination of garter stitch waves and a delicate lace ripple, this pattern creates a soothing, heirloom-quality piece. The deep sea blue color and the rhythmic stitch pattern mimic the gentle ebb and flow of ocean waves, making it a perfect gift for a new arrival. This pattern is designed for confident beginners who are comfortable with basic increases and decreases.

Materials Needed

  • Yarn: Lion Brand Heartland (100% acrylic, 251 yds/230 m per 5 oz/142 g skein) in Acadia (a deep sea blue) - 4 skeins
  • Needles: US Size 8 (5 mm) knitting needles, or size needed to obtain gauge
  • Notions: Tapestry needle for weaving in ends, stitch markers (optional)

Gauge

18 stitches and 24 rows = 4 inches in stockinette stitch. Always take time to check your gauge to ensure your blanket matches the finished size.

Step-by-Step Instructions

Finished Size

Approximately 36 inches wide by 40 inches long.

Abbreviations

  • CO: Cast on
  • K: Knit
  • P: Purl
  • K2tog: Knit two together (right-leaning decrease)
  • YO: Yarn over
  • St(s): Stitch(es)
  • RS: Right side
  • WS: Wrong side

Getting Started

CO 162 stitches using the long-tail cast-on method. This number includes 6 border stitches on each side.

Border (Garter Stitch)

Work 8 rows of garter stitch (knit every stitch across every row). This creates a flat, non-curling border.

  • Rows 1-8: Knit across all 162 stitches.

Body Pattern

The body pattern is a 4-row repeat. The border stitches (first and last 6 stitches) are always knit on every row to maintain a consistent garter stitch edge.

Row 1 (RS): K6 (border), *K2tog, K2tog, (YO, K1) 3 times, YO, K2tog, K2tog, K1; repeat from * to last 6 sts, K6.

Detailed explanation: Knit the first 6 stitches. Then repeat the section between the asterisks across the row. Each repeat uses 13 stitches and creates one wave. After the last repeat, knit the final 6 stitches.

Row 2 (WS): K6, purl to last 6 sts, K6.

Detailed explanation: Knit the first 6 stitches, purl across all stitches until only 6 remain, then knit the last 6 stitches.

Row 3: K6, *K1, K2tog, K2tog, (YO, K1) 3 times, YO, K2tog, K2tog; repeat from * to last 6 sts, K6.

Detailed explanation: Knit the first 6 stitches. Then repeat the section between the asterisks across the row. Each repeat uses 13 stitches. After the last repeat, knit the final 6 stitches.

Row 4: K6, purl to last 6 sts, K6.

Detailed explanation: Knit the first 6 stitches, purl across all stitches until only 6 remain, then knit the last 6 stitches.

Repeating the Pattern

Repeat Rows 1-4 until the piece measures approximately 38 inches from the cast-on edge, ending with a Row 4 (a wrong-side row). This ensures you finish the body pattern cleanly before the final border.

Final Border (Garter Stitch)

Work 8 rows of garter stitch, identical to the beginning border.

  • Rows 1-8: Knit across all 162 stitches.

Finishing

  1. Bind off loosely: Use a stretchy bind-off method (such as the standard knit bind-off worked loosely, or a sewn bind-off) to ensure the edge remains flexible and matches the rest of the blanket.
  2. Weave in ends: Using a tapestry needle, carefully weave in all yarn tails on the wrong side of the blanket.
  3. Block gently: Wet block or steam block the blanket to open up the lace pattern and even out the stitches. Lay flat to dry, gently stretching to the finished dimensions of 36" x 40".

Your Ocean's Lullaby Blanket is now complete! Enjoy the soothing, textured waves and the beautiful drape of this heirloom-quality piece.


Also Check Out: We think you'd love this beautiful pattern on our sister site: Crocheted Floral Coasters Set