Issue 1
MoonThreads
Organic Luxury Sleepwear
A mindful guide to understanding what you wear and why it matters.
That small tag tucked inside your clothing holds more information than most of us realize. It tells you exactly what your garment is made of and what touches your skin during sleep, movement, and rest. This guide makes label reading simple, so you can shop with intention rather than guesswork.
Step 1
Start With the First Fabric Listed
Clothing tags list materials in order of percentage, the first fabric listed is the most dominant one in the garment. Think of it the same way you read a food ingredient label: what comes first is what you are primarily wearing.
90% Polyester, 10% Spandex → predominantly synthetic with some stretch
95% Cotton, 5% Elastane → naturally based with a touch of stretch
The first fiber sets the tone for how the fabric feels, breathes, and performs against your skin.
Step 2
Know Your Fabric Categories
Not all fabrics are created equal and context matters.
Naturally Skin-Friendly
Breathable, minimally processed, and widely well tolerated. Ideal for sleepwear and extended daily wear.
Organic Cotton - Soft, breathable, and widely tolerated. A reliable everyday choice, especially for sensitive skin.
Silk - Naturally temperature regulating, lightweight, and smooth against the skin. A timeless choice for sleepwear.
Linen - Linen is made from the fibers of the flax plant. It feels airy and cooling. Ideal for warm climates and summer wear. Gets softer with every wash.
Fine Wool / Merino - Breathable and naturally insulating. Those with heightened sensitivity may prefer blended options.
Context Matters
Not inherently problematic - quality, proportion, and use case all play a role.
Modal / Rayon / Viscose - Derived from plant cellulose but heavily chemically processed. Softness and quality vary significantly by brand.
Bamboo Viscose - Often marketed as “natural” while the source plant is sustainable, the process is chemical intensive. Look for OEKO-TEX certified options.
Blended Fabrics - Practical and common. The higher the natural fiber percentage, the more breathable the result.
These can absolutely work well. The key is proportion, purpose, and how your own body responds.
High Synthetic Content
Durable and functional especially for activewear. For sleepwear or extended skin contact, natural alternatives tend to perform better.
Polyester - A petroleum derived plastic fiber (polyethylene terephthalate, or PET - the same plastic used in water bottles). It traps heat and moisture against the skin, disrupts the body's natural thermoregulation during sleep, and can leach endocrine disrupting chemicals, especially under heat and friction. Some polyester textiles have tested positive for BPA and phthalates, chemical additives linked to hormonal disruption with prolonged skin contact.
Nylon - Strong and stretchy. A go-to for activewear, though less breathable than natural fibers. Some nylon fabrics are also treated with chemical finishes (like anti-wrinkle or antimicrobial coatings) that can be irritants.
Acrylic - A wool-like synthetic that retains heat. Better suited for outerwear than next-to-skin layers. Acrylic fibers have been found to shed microplastics at a higher rate during washing, and the manufacturing process often involves acrylonitrile, a chemical that raises health concerns.
High Spandex / Elastane Blends - Excellent stretch and recovery in small amounts, or for fitted styles. Not the first choice for all-night wear.
Step 3
The 5-Second Label Scan
Reading a tag takes no more than a few seconds once you know what to look for.
- Identify the first fabric listed → that is what your garment is primarily made of.
- Note the percentages → a small amount of elastane for stretch is perfectly normal.
- Watch for performance language → “moisture-wicking,” “athletic,” or “quick-dry” typically signals a synthetic-dominant blend.
- For sleepwear and intimates, prioritize breathability over stretch.
- When in doubt, lean toward higher natural-fiber percentages, especially when wearing against the skin for long periods of time.
Step 4
Real-World Examples
95% Cotton, 5% Elastane
A naturally based blend with just enough stretch. A solid everyday option.
100% Polyester Satin
Smooth in texture, but entirely synthetic. Fine for decorative or occasional wear.
60% Cotton, 40% Polyester
A mid-range blend & more breathable than full synthetic, less so than pure cotton.
92% Nylon, 8% Spandex
Designed for performance. Best suited for activewear rather than extended sleep.
Intentional, Not Overwhelming
This guide is about awareness, not anxiety. Synthetic fibers are everywhere, and many serve a real purpose. The goal is simply to make more intentional choices. Especially for the garments you wear closest to your skin for the longest periods of time: sleepwear, intimates, and loungewear.
The Bottom Line
“ Read the first fabric listed. When comfort and extended skin contact are the priority, choose higher natural-fiber percentages. ”
Educational guide. Not medical advice.
Our tag reads 100% mulberry silk, OEKO-TEX certified. See the nightgown