How to Wash Silk Pajamas So They Last a Decade — The Care Guide

The difference between pajamas that look new in year five and pajamas that are worn out at year two is almost entirely care. Most silk pajama damage is self-inflicted — hot water, wrong detergent, fabric softener, tumble-drying on high, and deodorant stains that sat too long. Here is the practical, not-fussy care guide — for both washable silk and traditional mulberry silk — along with the five specific mistakes to avoid and honest stain-removal advice.

The core rules (both types of silk)

Whether you own washable synthetic silk or real mulberry silk, four rules apply to both:

1. Cold water, always. Heat damages silk proteins and causes synthetic "washable silk" (polyester) fibers to lose shape. Never wash silk in warm or hot water.
2. Mild, pH-neutral detergent. Regular laundry detergent is often alkaline with brighteners and enzymes that break down silk. Use a detergent formulated for delicates — or plain castile soap with a pH adjuster.
3. No fabric softener, ever. Softener coats fibers, dulls silk's natural sheen, and clogs the weave. The fabric is already soft enough.
4. No direct sunlight for drying. UV degrades silk and fades dyes. Dry in shade, indoors, or on a covered line.

Machine-washing washable silk (Simoné's pajamas)

Simoné's washable silk is designed for the washing machine. Here is the full procedure that keeps fabric looking new for years:

Step 1: Prep

• Turn pajamas inside-out. This protects the outer surface from snags and rubbing.
• Zip any closures. Button buttons. Tie any drawstrings loosely so they don't tangle.
• Place pajamas in a mesh laundry bag (a $5 investment that extends pajama life dramatically). The bag prevents the fabric from catching on the drum or other laundry.

Step 2: Wash cycle

• Delicate or hand-wash cycle. Gentle tumble or low-agitation.
• Cold water. Always.
• Half the usual detergent dose. More is not cleaner; excess detergent leaves residue.
• Spin cycle on low or medium (too high spin can stretch or distort silk).

Step 3: Dry

• Best: air-dry on a padded hanger (tops) or flat on a towel (bottoms). Out of direct sun.
• Acceptable: tumble dry on LOW heat for 10-15 minutes, then remove and hang. Remove while slightly damp — over-drying is what causes long-term degradation.
• Never: tumble dry on high or medium heat. Never hang in direct sunlight.

Step 4: Wrinkle recovery

• Most wrinkles fall out overnight on a hanger.
• For persistent wrinkles: steam with a handheld steamer at 2-3 inches distance, or hang in a bathroom with a hot shower running for 5 minutes.
• Iron only on SILK setting with a pressing cloth between iron and fabric. Iron inside-out.

Hand-washing traditional mulberry silk

If you own real mulberry silk (not Simoné's washable silk — Simoné's fabric is synthetic), hand-washing is usually the right approach. Some care labels say dry-clean-only, but hand-washing with proper technique is gentler than any dry-cleaning chemistry.

Step 1: Prepare the basin

• Clean sink or basin with cold water.
• 1 teaspoon of silk-specific detergent (like Eucalan, Soak, or The Laundress silk wash) per gallon of water. Dissolve completely.

Step 2: Soak, not agitate

• Submerge pajamas. Press down gently.
• Let soak 3-5 minutes. Do not rub, wring, or twist.
• Swish gently with hands to release surface dirt.

Step 3: Rinse

• Drain basin. Refill with fresh cold water.
• Press pajamas to release detergent. Repeat rinse until water runs clear — usually 2-3 rinses.

Step 4: Remove water

• Never wring silk. Wringing breaks fibers and leaves permanent creases.
• Press pajamas between two clean towels to absorb water.
• Hang or flat-dry from this point.

Stain removal — the honest version

Not every stain comes out. Silk is a protein fiber (real silk) or synthetic (washable silk) that stains differently than cotton. A fresh stain has a ~70% chance of removal; a set-in stain has maybe ~30%. Treat within 24 hours if possible.

Sweat and deodorant (the #1 pajama stain): Mix 1 teaspoon of mild detergent with 1 tablespoon cold water. Apply with a clean white cloth, blot (don't rub). Let sit 5-10 minutes. Rinse with cold water. If the yellowing persists, a second application. Do not use enzyme detergents — they can etch silk.

Perfume or alcohol-based products: Rinse immediately with cold water, then wash gently. Alcohol can permanently weaken silk fibers, so speed matters.

Makeup (foundation, mascara): Scrape off any solid residue with a blunt edge. Apply mild detergent solution with a cotton swab. Blot gently. Do not rub. If foundation has penetrated, professional cleaning is more likely to succeed than home methods.

Food or oil stains: Blot (never rub) to remove surface residue. Apply a few drops of mild dish soap, let sit 5 minutes, rinse with cold water, then wash normally. Oil on silk is particularly stubborn.

Set-in stains: Honestly? Pajamas with persistent stains become house-only pajamas. The fabric is still comfortable; it's just not guest-ready. Don't feel obligated to bleach-damage a good pajama to rescue it from a stain.

Storage — the other half of pajama life

Most pajama damage happens between wears, not during.

• Hang or fold cleanly. Folded in a drawer is fine; crumpled in a pile creates creases that become permanent over months.
• Cool, dry, dark. Heat and humidity encourage mildew; light fades dyes. A closed drawer in a climate-controlled room is ideal.
• Breathable storage. Never plastic-bag silk for long-term storage — plastic traps moisture. Cotton or linen storage bags if traveling.
• Rotate wears. Wearing the same pajama set three nights in a row, unwashed, weakens fibers faster than alternating with a second set and washing each in turn.

The five mistakes that shorten pajama life

1. Washing in hot water. Single most common mistake. Hot water degrades silk protein and distorts synthetic silk. Cold water, always.
2. Fabric softener. Dulls silk, coats fibers, not needed. Never add.
3. Over-drying. Tumble drying on medium or high heat shrinks and stiffens the fabric, increases static, shortens life by years.
4. Letting sweat / deodorant sit. Overnight yellowing sets permanently. Rinse pit area immediately after wear if you can, or wash within 24 hours.
5. Wringing. Wringing silk breaks fibers and leaves permanent creases. Press water out between towels instead.

Care frequency — how often to wash

For everyday-wear pajamas: wash after every 2-3 wears, or immediately if sweaty. For occasional-wear pajamas: wash before storing; wash again before next wear.

You don't need to wash after every wear if they're not sweaty or soiled. Over-washing cotton weakens fibers; over-washing silk dulls sheen. Underwash is a bigger mistake than overwash, but only by a little. Listen to smell and feel.

The travel protocol

• Pack in a breathable cotton storage bag, not plastic.
• Hand-wash in the hotel sink with a travel-size silk wash. Press in a towel, hang on a hanger overnight. Dry by morning.
• Avoid hotel laundry services — many use high-heat machine washing that destroys silk.

The quick version

• Cold water, delicate cycle, mesh bag, mild detergent, half the usual dose.
• Never fabric softener. Never hot water. Never high-heat drying. Never wring.
• Air-dry or tumble dry LOW for 10-15 minutes, hang to finish.
• Treat stains within 24 hours. Most stains are recoverable; set-in ones are roughly 30% recoverable.
• Rotate pajamas so each pair rests between wears.
• Store cool, dry, dark, in cotton (not plastic).
• With this routine, quality pajamas last 5-10 years easily.

Related reading

• Washable silk vs traditional silk — the honest breakdown.
• Peruvian Pima cotton — why the fabric of Peru is the world's finest.

Shop Simoné's washable silk

• Kenya washable silk pajama set
• Savannah Sky washable silk set
• Blossom silk kimono
• Full Simoné line