30 Night Free Trial
Cooling Tech Moisture Wicking Ultra Soft
Engineered Sleepwear

Sleep Wake Cooler Better

NiteKnit™ engineered sleepwear, designed to help reduce overheating for cooler, more comfortable sleep

Better sleep starts with cooling.

We spend a third of our lives sleeping, yet we often settle for fabrics that trap heat and disrupt our natural recovery cycles.

Step One Founder and CEO Greg Taylor experienced this firsthand. After countless sleepless nights battling overheating, he realised that the key to better rest wasn't just about a better mattress, it was about what you wear.

He set out to engineer a solution that prioritised thermoregulation above all else. The result was NiteKnit™.

Scientific Sources

Van Someren EJW. More than a marker: Interaction between the circadian regulation of temperature and sleep. Journal of Sleep Research. 2000;9(3):269–277.

Haskell EH, Palca JW, Walker JM, Berger RJ, Heller HC. The effects of high and low ambient temperatures on human sleep stages. Sleep. 1981;4(1):7–12.

Harding EC, Franks NP, Wisden W. The temperature dependence of sleep. Physiology & Behavior. 2019;188:55–62.

Better sleep starts with cooling.

Material Innovation

Introducing NiteKnit™

Engineered for cooler sleep.

Our NiteKnit™ fabric is designed for superior breathability and comfort.

6x More Breathable

Than Cotton 200 gsm

3x More Breathable

Than Polyester 200 gsm

Naturally Anti-Odour

Reduces odor-causing bacteria by 88% on average

Skin Safe

Free from harmful chemicals

Anti-Pilling

High resistance to bobbling and wear

High Resistance

To surface wear, ideal for garments exposed to repeated sleep movement

Engineered NiteKnit™ Fabric

Our NiteKnit™ fabric construction creates micro-channels for superior breathability and heat dispersion.

Standard fabrics* are broken.

Don't just cover your body. Cool it down with NiteKnit™.

Feature Cotton*Polyester*NiteKnit™
Superior Breathability
Anti-Odour Protection
Skin Safe & Chemical Free
Anti-Pilling Technology
Moisture Wicking
Machine Wash & Dry

*Comparison based on standard 200gsm cotton and 200gsm polyester.

Join the comfort revolution.

From the underwear brand that changed the game. We've sold over 26 million pairs of underwear and earned 65,000+ 5-star reviews. Now, we're bringing that expertise to your sleep.

NiteKnit™
Sleepwear Set

$119
Heat Escapes
Breathable
Wicking
Ultra Soft
Sleepwear - Pyjamas - Bamboo Underwear
NightKnit™ - Pyjamas Set - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
NiteKnit™ - Sleepwear Set - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
NightKnit™ - Pyjamas Set - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
NiteKnit™ - Sleepwear Set - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
NightKnit™ - Pyjamas Set - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
NiteKnit™ - Sleepwear Set - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
NightKnit™ - Pyjamas Set - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
Sleepwear - Pyjamas - Bamboo Underwear
NiteKnit™ - Sleepwear Set - Bamboo Underwear
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NiteKnit™
Sleepwear Set

$119
Heat Escapes
Breathable
Wicking
Ultra Soft

Select Color:

Select Size

Select Quantity

Crew / Ankle / No-Show Socks

Crew / Ankle / No-Show Socks

Free Shipping
30-Night Guarantee
Free Travel Pouch

NiteKnit™ is our new fabric engineered specifically for night-time comfort.

It’s breathable, lightweight and soft, with an airflow-friendly construction that allows heat to escape naturally and helps the fabric feel comfortable as you move through the night.

If you’re used to heavy cotton or synthetic sleepwear, you’ll feel the difference instantly.

 

Made from light weight drop needle fabric, 95% viscose and 5% elastane. The texture adds breathability and stretch, while the viscose gives a smooth, cool feel against the skin. The fit is relaxed and non-restrictive, designed for movement, not stiffness. Unlike standard cotton sleepwear, this fabric drapes naturally and maintains its shape after washing. Lightweight, moisture-wicking, and luxuriously soft, perfect for everyday comfort and rest.

We aim to dispatch your order 1-2 business days after placing your order.

Free shipping, no minimum spend.

GENERAL SHIPPING TIMES:

NSW, VIC & QLD = approx. 1-3 business days after dispatch.

WA, NT, TAS = approx. 2-4 business days after dispatch.

We offer international shipping to selected countries, which is shown at checkout. International shipping may vary based on local fulfilment.

We are so confident you'll love your Step Ones, we'll give you a FULL REFUND on your FIRST SLEEPWEAR if you don't like them for whatever reason.

Tested & Breathable

Independent lab testing confirms Step One outperforms traditional fibers.

Cotton
Polyester
Step One NiteKnit™6x More Breathable
88%
Bacteria Reduction on average
Skin Safe
No Chemicals
Anti-Pilling
Pilling
High
Durability

Common Questions

Made from light weight drop needle fabric, 95% viscose and 5% elastane. The texture adds breathability and stretch, while the viscose gives a smooth, cool feel against the skin. The fit is relaxed and non-restrictive, designed for movement, not stiffness. Unlike standard cotton sleepwear, this fabric drapes naturally and maintains its shape after washing. Lightweight, moisture-wicking, and luxuriously soft, perfect for everyday comfort and rest.
Machine wash at 30°C. Do not bleach. Line dry or tumble dry gentle. Do not iron. Do not dry clean.
If you are unsatisfied with your NiteKnit™ sleepwear, simply send it back for a full refund, or exchange it for a different size.
30

Try NiteKnit™ for 30 nights

If you don't love the feel of your first pair, return it and get your money back.

Risk-free trial
Full refund
Expert Customer Support

We stand behind the comfort and breathability of NiteKnit™. Guaranteed.