Barbarian High Waisted Trousers in Cosmic

Independent design-led sleepwear + homewares brought to you by real people who care. We’re serious about Design + serious about Joy! 

£52.50
£75.00

Organic Cotton Sleepwear so good that 90% of our customers don’t want to confine it to the bedroom. Why? 

 

Designed in Glasgow by Mil, we describe our pyjamas as lightly tailored with a nod to workwear, and believe the maxim “the details make the design”. 

 

Our high waisted trousers feature twin needle stitching, gently tapered legs slightly cropped at the ankle, a double faced hem that can be rolled up (or let down), a drawstring waist with button-closing reinforced fly, a high waistband designed to sit in the small of the back, tailored with darts in the back for a comfortable and flattering fit.  

Colours:

Size

NB. our sizes 5, 6 + 7 are graded for plus size bodies and feature a bigger "front rise" designed to accommodate tummies, and a gusset for ease of movement. Sizes 0 - 4 feature 'regular' grading.  💚

Size guide

Product description

Heavy on the blues, this colourway is COSMIC.

 

Our high waisted trousers feature twin needle stitching, gently tapered legs slightly cropped at the ankle, a double faced hem that can be rolled up (or let down), a drawstring waist with button-closing reinforced fly, a high waistband designed to sit in the small of the back, tailored with darts in the back for a comfortable and flattering fit. 

 

The ornamental forms drifting across our BARBARIAN print hint at the Paisley Pattern with a dash of outsize botanicals, but are actually based on the letter Z - a recurring theme in the Irregular Sleep Pattern world. Barbarian is named in homage to the epic opening track from our favourite Joan as Policewoman’s collaborative 2021 album with Tony Allen & Dave Okumu: The Solution is Restless.

 

These bold + bright 'day to night' organic cotton pyjamas are so fabulous you won't want to confine them to the bedroom. The embodiment of dopamine dressing, 90% of our customers wear our pyjamas as daywear, sparking joy wherever they go.

 

Our garments are cut to minimise fabric waste which has the added bonus of meaning no two will ever be the same!

 

While many people might call them eco pyjamas or sustainable sleepwear, we much prefer to say responsibly made pyjamas. Read about our responsible design ethos here



 

Size and fit

 

Why is our sizing so confusing? Click here for a 60 sec video from Jolene.

 

For the best fit, grab a tape measure and measure both your waist and the widest part of your bottom/hips and refer to our detailed size charts to find your size. 

 

NB. our sizes 5, 6 + 7 are graded for plus size bodies and feature a bigger "front rise" designed to accommodate tummies, and a gusset for ease of movement. Sizes 0 - 4 feature 'regular' grading.  💚

 

Need sizing help? Contact us here, we love to hear from you.

 

Models

Piot : wears irregular size 4

Craig : wears irregular size 2

 

Check out our body library of models here

 

Shipping and returns

Shipping

 

We ship orders every Monday + Thursday. If you need something sooner, please choose express delivery which will be dispatched the day after you make the order, and takes 1-2 days to arrive. 

  • Free Delivery in UK over £100
  • Under £100 in UK £4.19 Royal Mail tracked 48  2-3 working days
     
  • £12 express delivery (DHL) in UK  1-2 working days
  • USA, Japan, Australia, New Zealand, shipping is free for orders over £200
  • Otherwise $27 economy shipping to Canada, Japan via Royal Mail  10-20 days*
     
  • Express shipping to Australia, New Zealand & Japan available for £50 3-5 working days*

         * can vary based on customs clearance delays

 

  • Customers in USA: Unfortunately we cannot ship to USA as of 18th August 2025 with the updated tariffs. We are working on a solution going forward.
  • Customers in Europe: We are still having issues and are working on a solution.
  • International Shipping to rest of the world: please contact us for a quote
  • NB: For International Orders, please note that depending on your order and country, you may be liable to pay local taxes and duties on receipt of your order, for which we cannot accept liability. The refusal of payment of such fees causes a full cancellation of the order. Transportation cost and custom clearance cost associated with a cancellation will be deducted from the amount refunded to you.


 

Returns

 

  • Size exchanges within the UK are free of charge. Please head to our returns portal. Returns will incur a £4 fee which will be deducted from your refund. 

 

  • Dog beds are the exception as these do not ship with Royal Mail due to their size. Please not that dog beds cannot be processed through our returns portal. Please contact us here if you have any queries.

 

  • You have 28 days from receipt of goods to return your garment(s) to us. Items should be returned new, unused, FOLDED and with all tags attached and in original packaging. Please note that after 28 days, we are only able to offer an exchange or credit note. Unfortunately, we cannot process refunds for any items returned outside of this time frame.

 

  • If there is a fault with your garment, please get in touch and we will resolve the issue. 

Free UK Delivery

over £100

Responsibly made

 

 

Easy UK Returns

within 28 days*

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Customer Reviews

Based on 23 reviews
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m
mahrie
Great PJ’s

These are well made and the colours are fab and vibrant - point of note size up on the bottoms! I had to return my originals, but process was super easy and customer chat helpful

J
Jo Ladd
These bottoms are the tops ⭐

Beautiful product and outstanding customer service -10 out of 10 👏🏻

C
Claire Bradley
Fantastic Product

I absolutely love the pyjama trousers and t-shirts I've bought from Irregular Sleep Pattern. They are so well made and with lovely quality materials. I have, up to now, worn them around the house, but in warmer weather I'd definitely wear the pyjama trousers outdoors, maybe going for a walk. I'm taking them on holiday with me to Nepal soon and hoping to show them off over there 🤩

O
Olive Alexander
Best pjs

I’ve bought the cosmic relaxed fit and the tailored high waist trousers this time. I love the colour pattern as well as the styling of the trousers. Quality is just as good as my previous purchases. I appreciated the personal customer service too. All in all a very happy customer.

J
Jackie Thain
I'm in love!

First pair of pyjama trousers was am impulse buy (Chameleon if folk are interested) Instant joy and have now bought 2 other pairs ,
First 2 were originals but the Cosmic relaxed fit was on offer so there's my third one, Excellent quality, comfy and bright, what's not to love.

Design details

Our Irregular way 

Responsible Materials & Production 

We use natural fibres and recycled materials for most of our products

Small team

Just 3 of us in the studio

(4 if you count Truman)

Buy from people who care

We only make things we LOVE and that will last for years to come

Friendly customer service & sizing advice

We love to help, talk to Jolene or Hayley here

Designed in Glasgow by Mil

Always responsibly produced

Our Irregular way 

Alt image Alt image Alt image

Buy from people who care

READ OUR STORY

Responsible Materials & Production

We believe that everyday objects should spark joy and last you for years to come. Read about our responsible design process 

 

Learn more