Discovery Duo - Sweet Nights Adult
Absorption : Abondant | Très abondant
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Discovery Duo - Sweet Nights Adult

Size Guide - Microfiber Collection
Our models fit true to size. Please note that the microfiber material of our panties is shaping and tends to stretch after the first wash.
Therefore, we recommend choosing the size you usually wear.
Need advice? Unsure about the size?
Contact our customer service by email at contact@smoon-lingerie.com.
| Size | Clothing size | Waist | Hips |
|---|---|---|---|
| Women | |||
| XS | 34 | 56-62 cm | 84-88 cm |
| S | 36 | 62-68 cm | 88-92 cm |
| M | 38 | 68-74 cm | 92-96 cm |
| L | 40 | 74-80 cm | 96-100 cm |
| XL | 42 | 80-86 cm | 100-104 cm |
| XXL | 44 | 86-92 cm | 104-108 cm |
Swipe the table to see every measurement
How to measure
-
WaistAt the narrowest point of your torso, above the navel.
-
HipsAt the fullest point, keeping the tape measure horizontal.
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Between two sizes?Go for the larger one.
Details
Some nights, regular protection simply isn’t enough. You double up, sleep in one position, and wake up to check. This duo is made for those nights—and for the days that come with them.
The Sweet Nights Discovery Duo brings together our two most absorbent products: the Léto boxer briefs, designed for nighttime and lying down, and the Hécate period underwear, with our record absorption capacity, for your heaviest days.
At night
Léto period boxer briefs · heavy flow, 4 tampons
Its absorbent area extends higher at the front and back, to protect you even when lying down. You can turn over, sleep on your back, or simply sleep through the night. Its enveloping boxer cut feels like pajama bottoms, without chafing. Laboratory-tested absorption, on average 53% more effective than the market’s heavy-flow period underwear.
Your heaviest days
Hécate period underwear · very heavy flow, 6 tampons
Our most absorbent model, with a record capacity of 150 ml, equivalent to 6 tampons. Its antibacterial absorbent area is both wider and higher, at the front and back, for reliable protection in any position—standing, sitting, or lying down. These are the period underwear that keep you from having to change during the day. They are particularly suitable for people with a copper IUD or endometriosis.
Both models provide up to 12 hours of protection, with no odor or damp feeling, thanks to their 3 layers: moisture-wicking, absorbent, and waterproof.
Why this duo
When your flow is heavy, the real issue isn’t just capacity—it’s having the right cut at the right time.
- Hécate for capacity: your heaviest days, when you used to change protection every two hours.
- Léto for coverage: your nights, when the boxer cut and raised absorbent area make all the difference while lying down.
- A spare to rotate: while one dries, you wear the other. It’s the essential setup to never be caught off guard.
This is the duo we recommend for confidently managing very heavy flow, particularly in cases of endometriosis, a copper IUD, postpartum recovery, or perimenopause. Discover our selection dedicated to nighttime protection too.
Good to know
- Sizes: from XS/34 to XXL/44. If you’re unsure, check our size guide. Exchanges are free.
- Care: rinse in cold water after use until the water runs clear, wash at 30°C, and air-dry. Find all our advice in the care guide.
- Lifespan: approximately 5 years, or nearly 65 cycles.
- Certifications: OEKO-TEX® STANDARD 100, certificates no. CQ 1285/1 and CQ 1285/2. Designed in Paris, made with materials from France and Italy.
- Material: Hécate period underwear is made from 82% recycled polyamide.
If your flow is lighter mid-cycle, complement this duo with a medium-flow model. Discover all our period underwear for women.
Manufacturing & environmental impact
La culotte de règles Smoon est certifiée OEKO-TEX® STANDARD 100.
Elles sont ensuite assemblées en Tunisie, pays reconnu pour son savoir faire en lingerie.
Impact environnemental
3 ans de règles = 3 culottes = 0.127kg de déchets VS 780 tampons ou serviettes = 4.5kg de déchets
Composition & maintenance
Matière principale : 80% polyamide, 20% elasthanne
Fond : 51% hydrophilamide, 42% polyamide, 7% elasthanne
Absorbant : 100% polyester
Membrane : 86% polyester, 14% polyuréthane
Pour consulter notre guide d'entretien, cliquez ici !
Delivery
🇫🇷 🇧🇪 🇱🇺 In mainland France, Belgium and Luxembourg :
- Free from €49 (Mondial Relay) // 3 to 6 working days by Colissimo (from €5.9)
- Free return via our return form
🇨🇭 In Switzerland :
- Free from 100€ // 4 to 10 working days by Chronopost.
- Customs fees may apply. For more information, click here .
- Free return via our return form
🇪🇺🌎 Rest of Europe and world :
- Between €7.9 and €12 depending on the amount of the basket and the destination // 5 to 10 days delivery without tracking.
- Returns at your expense
For any questions, consult our FAQ or contact us by email at contact@smoon-lingerie.com.









