Pyjamas for the workplace


how to measure


Ergonaut has free returns so if you choose the wrong size, you can switch to the correct size. You can read the Returns Policy here.

Bust Waist Hips
Aurora 34 27 36
Mimosa 36 28 37
Phoenix 38 29 38
Bust Waist Hips
Aurora 86 68 91
Mimosa 91 71 93
Phoenix 96 73 96


What's my size?

Easy! Measure yourself and check which star you are in the chart above.

How to measure:

Grab a measuring tape and wrap it around your bust.

If you're a bra wearing kind of gal, we suggest you measure with your bra on.

Then do the same with your hips and waist.

Choose your size based off your largest measurement.

Example: If your size in inches is bust: 35, waist: 27, hips: 37, choose the wrap dress in size mimosa.

Why are the sizes in names instead of numbers?

We think you're much more of a star than a number. That's why all our sizes are celestially inspired. That's right, mimosa is not just a delicious cocktail. Numbers are too often correlated with worth and 'scuse our work inappropriate language but we think that's BS.

Sizing tips

If you have any issues at all working out your size, please email and we will get back to you way faster than Brett in accounts.

My size is missing?

The first Ergonaut collection is currently available in 3 sizes but we want to expand! If you can't see your size above, please send an email to with the subject line SIZE MISSING. Based on demand, we will be able to expand our size range.