Shop STAGE 1 - Swaddle

Yes, absolutely. The FX Swaddle (STAGE 1) is designed for use from birth until your baby begins to show signs of rolling.

It provides a snug, secure fit around the upper body to help calm the startle reflex, while allowing natural arm movement for self-soothing and early development.

Here’s a quick overview of our sleepwear stages:

• STAGE 1: FX Swaddle (Newborn to first signs of rolling)

• STAGE 2: Swaddle Transition Sleep Bag (for transitioning out of swaddling once rolling begins)

• STAGE 3: Sleeping Bag (for babies comfortably sleeping with arms-out)

• STAGE 4: Sleepsuit (for active toddlers who need more freedom of movement during sleep)

To find the right stage for your baby, view our full guide here: https://sleepycompany.com/sleepwear-stage-guide

The FX Swaddle (STAGE 1) is designed for use from birth until your baby begins to show signs of rolling, typically occurring between 4-6 months but potentially sooner for some babies.

It is essential to discontinue swaddling (STAGE 1) as soon as the baby starts showing signs that they can begin to roll. At this point, we recommend transitioning to our 2-IN-1 Swaddle Transition Sleep Bag (STAGE 2), which is specifically designed for rolling babies. For more information, please visit our product page sleepycompany.com/shop/transitionsleepbags

The FX Swaddle comes in various warmth ratings to cover all seasons: 0.2 Tog, 0.5 Tog, 1.5 Tog, and 2.5 Tog.

What is a Tog?

Tog is a measurement of warmth or 'Thermal Resistance' in a fabric. Lower Tog rating = cooler fabric, higher Tog rating = warmer fabric.

Light Weight Bamboo 0.2 Tog

• Made from a single layer of thin and stretchy fabric, consisting of 90% bamboo and 10% spandex. This fabric is exceptionally soft and light, with a silky feel.

• It's perfect for summer use when worn with light clothing or just a nappy underneath, and suitable for autumn and spring when layered with warmer clothing underneath.

Standard Weight 0.5 Tog

• Made from a single layer of stretchy fabric, consisting of 95% cotton and 5% spandex. This fabric is similar to that of a comfortable t-shirt.

• Suitable for year-round use and daytime naps. You can layer your baby underneath the swaddle based on the room temperature.

Warm Weight 1.5 Tog

• Made from a single layer of stretchy cotton fleece fabric, consisting of 95% cotton and 5% spandex. This fabric features a smooth exterior and a plush, fluffy interior, similar to that of a cosy sweatshirt or jumper.

• Ideal for autumn and spring when worn with light clothing or just a nappy underneath and can be layered with warmer clothing during winter for added warmth.

Warm Weight 2.5 Tog

• Made from a stretchy cotton fleece fabric, consisting of 95% cotton and 5% spandex. This fabric features a smooth exterior and a plush, fluffy interior, similar to that of a cosy sweatshirt or jumper. While the upper body and sleeves feature a single layer of this fabric, the area from below the chest to the bottom, both front and back, is double-layered, providing optimal warmth.

• Ideal for winter months, you can dress your baby underneath the swaddle with suitable layers, adjusting as needed to accommodate varying cold temperatures.

For babies aged 0-12 months, weight is the most reliable factor when selecting a swaddle size. Height is also important, but age is the least accurate, as babies of the same age can differ significantly in size. Use your baby’s current weight and height to select a base size below: 

NOTE: While we strive to provide accurate sizing guides, all measurements are approximate and for guidance only. Because every baby is different, we recommend trying the swaddle on first to ensure the right fit before using it for sleep. It should feel snug around your baby’s upper body and tummy for a secure, hugged feeling. Please see below for more detailed info.

How the Swaddle Should Fit Your Baby

We recommend trying the swaddle on for size before using it for sleep. When the swaddle is properly fitted:

• It should fit snugly across the upper torso to create a hugged feeling, helping to calm the baby and suppress the startle reflex.

• It should be roomy around the hips and legs to allow natural movement and healthy hip development.

• You should be able to fit two fingers comfortably inside the neck opening.

Signs the swaddle may be too tight

These apply to swaddling in general, regardless of brand or style.

• Consistently rapid, shallow breathing (over 60 breaths per minute at rest). While brief spurts of rapid breathing are normal in newborns, constant fast breathing may suggest restricted chest movement or difficulty breathing.

• Nasal flaring, grunting, or chest retractions (when the skin pulls in around the ribs or neck with each breath)

• Blue or pale skin tone, especially around the lips

Signs the swaddle may be too loose or oversized

These apply to swaddling in general, regardless of brand or style.

• Fabric rides up over baby’s face

• Loose fit around the tummy

NOTE: If you need to exchange your item, please refer to our Returns and Exchanges information here: https://sleepycompany.com/shipping-returns-warranty

Baby’s Growth: What to Expect

Here’s a quick guide to typical baby weight and height growth patterns to help you choose the right size - and know when to size up.

Typical weight gain

In the first week, babies may lose up to 10% of their birth weight but usually regain it over the next few weeks. Most babies double their birth weight by 4–6 months and triple it by 12 months.

Average weekly weight gain:

• 0-3 months: 150-200 grams per week

• 3-6 months: 100-150 grams per week

• 6-12 months: 70-90 grams per week

Typical height growth

• 0-6 months: 2.5 cm per month

• 6-12 months: 1.3 cm per month

NOTE:

• These are averages. Every baby grows at their own pace, and growth may not follow a steady pattern. Growth spurts are common and can happen suddenly.

• To avoid unexpected delays in receiving your swaddle, we recommend you choose the Express Shipping option during checkout. For shipping info please visit: https://sleepycompany.com/shipping-returns-warranty