I have silk all over my home, pillowcases, bedding, sleep masks, for over a year now. And before learning everything below, I paid for it. A pillowcase that went through the machine with the household detergent and came out stiff as a postcard. Another piece I'd waited weeks for, killed in a single wash. Back then I thought silk was fragile. It's actually tough, it just doesn't forgive the mistakes everyone makes.
This post is everything I wish I'd read earlier. The point is simple: with silk, the purchase matters less than the care. Care is what decides what the piece actually costs you, how long it lives, and what it's still worth in three years.
Money first, and I'll be honest: if price is your only criterion, the €8 polyester "satin" wins every time, nothing beats €8 (I'm in Europe, prices in euros). The number that matters is the real price of the silk itself. A genuine mulberry silk pillowcase runs from €20-25 for entry-level 19 momme on Amazon to €70-90 from specialist brands, and that gap pays for real differences: the weight first of all, a 19 momme is thin and wears out faster than a 22, then the finishing and construction. But here's the thing: whatever you paid, care decides the final bill. Washed wrong, the piece is dead within a year, full price, whether it was €25 or €90. Cared for properly, it's a different scale: talking with people here on Reddit, some told me they've kept the same piece for fifteen years, others five, depending on use and weight. The same money, divided by five, ten, fifteen, just from doing it right. Silk has insane longevity, it only asks for two things: decent weight to start with, and respect in the wash.
That longevity comes down to four habits. Silk is a protein, like your hair. First, the detergent: enzyme-free and pH neutral, those are the only two criteria that matter, because enzymes digest proteins, the fiber included, wash after wash. Silk/wool washes are built for exactly this, and a good delicates detergent can work too, as long as it checks both boxes: read the label, that's what decides, not the marketing. Second, water at 30°C max, above that the weave tightens and it's irreversible. Third, dry flat, in the shade, never the dryer. Fourth, oily stains: don't rub, put talc or cornstarch on the stain overnight, then brush it off gently, that's the dry cleaners' method.
Comfort follows the same logic: it's lost in the wash, not through use. What you're paying for in silk is the glide, the coolness, the fact that it drinks far less of your night cream than cotton does. Washed wrong, it turns stiff and dull within months. Cared for, it keeps its original hand for years. Caring for it means preserving what you actually bought: the feel.
The environment, last, and honestly: producing silk is not eco-friendly, no fiber is. What's eco-friendly is not re-buying. The reference organization on textile impact (WRAP, UK) confirms it: extending the active life of clothing is one of the most effective levers in the industry, carbon, water and waste. The environmental math lands in the same place as the money math: whatever lasts, wins.
One example to make it concrete: the same €70 pillowcase, two possible lives. First life, machine at 40°C with the household detergent, then the dryer. Within a year it's stiff and dull, ready to replace: €70 a year. Second life, washed at 30°C with an enzyme-free detergent, dried flat in the shade. Ten years later it's still on the bed with its original glide: €7 a year. Same pillowcase, same money upfront. The only difference is time: a basin, a soak, flat drying instead of throwing everything in the drum. It's a small ritual, not an invisible chore, I won't lie to you. But that time is what divides the bill by ten.
Almost everything here also applies to wool and your other good pieces.
Happy to answer any questions.
