The Sleep Tight



Designed with heavy periods in mind, The Sleep Tight provides exceptional absorbency for a comfortable leak-free sleep without sacrificing style. 

With heavy absorbency going all the way up both back and front, The Sleep Tight also provides extra protection for a long day at the office, or is perfect for postpartum.

Flow: Heavy = 20ml / 4 regular tampons.

Heavy: if you have heavier flow, this is your go to! 

Shipping & Returns

Free shipping on all AU orders +$100 and all international orders +$200.

Flat rate shipping of $7.00 for orders less than $100.

All in stock items are dispatched within 1-3 business days (excluding weekends, public holidays and busy sale periods) and deliver in 3-8 business days. 

Our undies are delivered to you by Sendle – Australia’s first 100% carbon neutral delivery service.

You may return all other unworn garments in original unopened packaging for a credit or refund within 30 days of your purchase. View our full return policy here

Try risk free for 30 days*

As a first-time customer, you can try one pair of undies for 30 days risk-free. If you don’t like how they function, we will happily give you your money back (minus the cost of shipping).

Unfortunately, garments that have been worn can no longer be returned due to sanitary reasons. And you know, the market for second-hand underwear isn't all that flash!

So, we will require a brief explanation of the reason for your request.  The trial applies to one worn garment only.

No further refunds, credits or exchanges can be given on any additional worn or washed underpants.


Formulated with organic cotton and nylon made from recovered ocean plastics, these underpants whisk moisture away from your body (and plastics away from the turtles!), keeping you dry and "good karma'd" all period long.


Find our size guide here

*Disclaimer: The Sleep Tight run a little smaller than our other sizes, if you are in between sizes we would recommend choosing the larger option. Should you have any questions, please email us on and our team will be happy to assist further. 

Customer Reviews

Based on 1 review
Prettier than my regular knickers!!

Not only were these knickers a success as they provided a comfortable, leak-proof night’s sleep - but they are really pretty! You don’t feel like you’re wearing a menstrual product, instead it’s a bit of feminine luxury at a time of the month when women really need it! Thanks - will purchase again.