Sleep cooler.Wake better.

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

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The NiteKnit™ palette

Four ways to wind down.

Build your sleep kit.

NiteKnit™ - Sleepwear Set

£60.48

Colour Midnight Black

Size guide

NiteKnit™ - Sleepwear Set

SizeWaist cmWaist in
S76–8430–33
M84–9133–36
L91–9936–39
XL99–10639–41.5
2XL106–11441.5–45
3XL114–121+45–47.5+

Relaxed fit for sleeping comfort. Between sizes? Size down for a snugger fit.

Size guide

Socks (Ankle, Crew, No Show)

SizeEUMen's USWomen's USUK
XS35–373–55–73–4.5
S38–405–77–94.5–7
M40–427–99–117–9.5
L42–459–1111–139.5–11
XL45–4911–1413–1511–14

Why NiteKnit™

Better sleep starts with cooling.

Fabrics that trap heat wreck your sleep. Founder Greg Taylor set out to fix it. The result was NiteKnit™.

Founder Greg Taylor on why NiteKnit™ exists

Micro-channel knit lets body heat escape, so you stop overheating at night.

6x more breathable than cotton, 3x more than polyester.

Pulls sweat away and dries fast, so you wake up dry.

Skin safe, naturally anti-odour, resists pilling and wear.

  • 26M+ Undies sold
  • 65K+ 5-star reviews
  • 2M+ Customers

Sleepwear worth talking about.

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4.8

What customers say about sleeping in NiteKnit™
30 Nights

30 Night Sleep Guarantee

Sleep in NiteKnit™ for 30 nights. If you don't sleep cooler, send it back for a full refund.

  • Risk-free trial
  • Full refund
  • Expert customer support
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Frequently asked questions

What is NiteKnit™ made of?

Made from lightweight 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.

How does it fit?

The fit is relaxed for sleeping comfort. If you prefer a more snug fit, consider sizing down.

Can I buy the shirt or shorts on their own?

Yes. The shirt and shorts are also sold separately in Midnight Black and Deep Navy. The full set comes in all four colours.

Do I save if I buy more than one set?

Yes. Buy two sets and save 15%, or three sets and save 20%. Mix colours and sizes however you like. The discount is applied at checkout.

What are the care instructions?

Machine wash at 30°C. Do not bleach. Line dry or tumble dry gentle. Do not iron. Do not dry clean.

How does the 30-night guarantee work?

If you are unsatisfied with your NiteKnit™ sleepwear, simply send it back for a full refund, or exchange it for a different size.