Blissy vs Slip Silk Pillowcase
Compared from manufacturer specifications and our research — neither pillow has been hands-on tested yet · See how Mr. Squish tests pillows
Blissy Silk Pillowcase
Blissy · Mulberry Silk (22 momme) · Soft
22-momme 6A-grade mulberry silk with a hidden zipper, OEKO-TEX certified, and available in dozens of colors. The silk pillowcase that made the category mainstream.
9.2/10 · from $90
Read the full review
Slip Pure Silk Pillowcase
Slip · Mulberry Silk (22 momme) · Soft
Slip's proprietary Slipsilk is a 22-momme long-fiber mulberry silk developed over ten years, with a finish specifically tuned to reduce friction on hair and skin.
9/10 · from $89
Read the full reviewSilk pillowcases are one of the few bedding upgrades with a plausible mechanism behind the marketing: a smooth surface creates less friction against hair and skin than cotton, which means fewer creases and less breakage. Both of these are genuine mulberry silk at a similar weight, so the decision is about closure, sizing, colour range and price rather than material quality.
Specifications below come from each manufacturer; Mr. Squish has not laundry-tested these side by side.
Side by side
| Blissy Silk Pillowcase | Slip Pure Silk Pillowcase | |
|---|---|---|
| Material | 100% mulberry silk, 22 momme | 100% mulberry silk, 22 momme |
| Closure | Envelope | Envelope (zip on some lines) |
| Sizes | Standard, Queen, King | Standard, Queen, King |
| Colour range | Very wide | Curated, fashion-led |
| Care | Machine wash cold, delicate bag | Machine wash cold, delicate bag |
| Price band | Mid | Premium |
Momme weight is the number that matters
Momme measures silk weight. Below about 19 momme a case feels thin and wears out fast; 22 momme is the accepted sweet spot for bedding, and both of these hit it. Anything advertised as 'silky' without a momme figure is usually satin polyester, which is a different product entirely.
Fit and closure
Both use an envelope closure, which keeps the pillow tucked in without a zip digging into your cheek. Fit complaints in owner reviews for both brands almost always come down to buying a case sized for a standard pillow and using it on an overstuffed one — measure your pillow, not your bed.
Price and range
Slip sits at the top of the market and leans into a fashion-brand identity with a curated palette. Blissy typically undercuts it and offers a much wider colour and pattern selection, often with bundle pricing. At equal momme, the material difference between them is small enough that price and colour are legitimate deciding factors.
Care determines lifespan
Silk fails from hot water, harsh detergent and tumble drying, not from use. Cold wash in a mesh bag with a pH-neutral or silk-specific detergent, then hang to dry, and either case lasts years. That applies identically to both.
Choose Blissy if you want 22-momme silk at a lower price, a wide colour range, or multiple cases for the same budget.
Ready to give it a squish?
Choose Slip if you want the established premium brand and its particular colour palette, and price is secondary.
Ready to give it a squish?
Our verdict
At the same momme weight these are closer than their price gap suggests. Blissy is the better value; Slip is the stronger brand. Either beats cotton for hair friction — and both beat a polyester 'satin' case by a wide margin.