• Finished striped newborn sack laid flat
  • Close view of the ribbed opening and colour stripes
  • Striped sack in a purple colourway laid flat
  • Two finished newborn sacks in red and blue
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Sleep Sack Knitting Pattern

Sleep Sack Knitting Pattern

Striped baby knitting

Knit a striped newborn sack with a fold-over ribbed opening and a gently widening shape. The top-down instructions let you see the length and stripe placement as you go.
  • Confident beginner
  • Written instructions

Digital knitting pattern

£6.99 GBP
£6.99 GBP
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  • Work the sack in one piece from the top down
  • Choose three colours for the narrow stripes
  • Close the bottom with a three-needle bind-off
See sizes, yarn and tools ↓

What is inside the pattern?

The PDF includes written round-by-round instructions, yarn quantities for the sample, finished measurements and directions for the three-needle bind-off.

Is this the right level for me?

Work twisted ribbing and stockinette in the round, increase for the widening shape, and close the base with a three-needle bind-off. You’ll also change colours for jogless stripes.

Finished size & fit

One newborn size. Finished circumference is approximately 39 cm (15¾ in) at the top and 58.5 cm (23¼ in) at the bottom. Length is 43 cm (17 in).

Materials needed

Use sport-weight yarn in three colours. The sample used approximately 41 m of the ribbing colour and 97 m and 106 m of the stripe colours. You’ll need two 3.5 mm circular needles and a stitch marker.

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Plan your knitting project

Finished size & fit

One newborn size. Finished circumference is approximately 39 cm (15¾ in) at the top and 58.5 cm (23¼ in) at the bottom. Length is 43 cm (17 in).

Yarn & tools

Use sport-weight yarn in three colours. The sample used approximately 41 m of the ribbing colour and 97 m and 106 m of the stripe colours. You’ll need two 3.5 mm circular needles and a stitch marker.

Gauge

23 stitches and 32 rows per 10 cm (4 in) in blocked stockinette.

Construction & techniques

Work twisted ribbing and stockinette in the round, increase for the widening shape, and close the base with a three-needle bind-off. You’ll also change colours for jogless stripes.

Picture the finished project

Striped sack in a purple colourway laid flat

The finished project

A small project for a new arrival

The narrow stripes leave room for a subtle palette or more contrast. The ribbed opening frames the stripes in a solid colour.

From the first stitch to the finish

Close view of the ribbed opening and colour stripes

Your time with the needles

Check the finished measurements before casting on

Swatch in stockinette and block it before measuring. The top and bottom circumferences are different, so compare both with the size you want.

A few things before you begin

Choose your size, check your yarn and plan your first stitches.

Do I need three full balls for the sample?

The sample used 13 g, 31 g and 34 g of the three colours. Match the metreage and gauge if you’re choosing yarn from your stash.

How does the bottom close?

The last row uses a three-needle bind-off to join the front and back. Keep both circular needles handy for that step.

What gauge should I aim for?

23 stitches and 32 rows per 10 cm (4 in) in blocked stockinette.

How do I receive my pattern?

After payment, follow the download link with your order. Save the file so you can return to the instructions when you’re ready to make it.

Make your sleep sack

Choose your yarn and make the project your own.

Get the Pattern · £6.99