Purple
Purple SoftStretch Sheet Set Review
Engineered stretch fabric designed to flex with the Purple GelFlex Grid
Material
Bamboo Viscose + Spandex Blend
Weave
Knit (4-way stretch)
Thread Count
—
Trial Period
100 nights
Free shipping • 1 year warranty
Our Ratings
Purple SoftStretch Sheet Set Overview
Purple's SoftStretch Sheets use a four-way stretch bamboo-viscose knit that moves with the GelFlex Grid instead of flattening it — close to essential on a Purple mattress and among the coolest sets we tested.
Our Review
Purple's SoftStretch Sheets use a 4-way stretch knit fabric specifically designed not to flatten or restrict the GelFlex Grid in Purple mattresses. The bamboo viscose base wicks moisture and sleeps remarkably cool. Even on non-Purple mattresses, the stretch fit eliminates wrinkles and creates a snug, smooth surface.
Our Hands-On Experience
These exist to solve a specific problem: conventional fitted sheets pull taut across Purple's GelFlex Grid and flatten it, which cancels part of what you paid for. The four-way stretch knit here moves with the grid instead of compressing it, and the difference in surface feel on a Purple mattress is immediately noticeable.
The bamboo viscose base does the cooling work and does it well — this was among the coolest-sleeping sets in our lineup, helped by the knit structure moving more air than a woven sheet.
Knit fabric pills if you wash it with anything abrasive, the spandex content will fatigue before a 100% bamboo sheet would, and colors are limited to neutrals. At $169 they are close to mandatory if you own a Purple, and a good cool-sleeping knit set even if you do not.
What We Love
- Won't flatten Purple's GelFlex Grid
- 4-way stretch eliminates wrinkles
- Excellent moisture wicking from bamboo
- Sleeps very cool
- Fits all mattress depths
Room for Improvement
- Knit fabric can pill if washed with abrasive items
- Limited to neutral color palette
- Spandex blend less durable than 100% bamboo
Best For
Customer Reviews
Finally sheets that work with Purple
Standard sheets were squashing my Purple Hybrid Premier's grid. These breathe through the grid and fit like a glove.
How We Tested the Purple SoftStretch Sheet Set
Every bedding set we review goes through our rigorous, multi-step evaluation process. Here's exactly how we arrived at our scores for the Purple Purple SoftStretch Sheet Set.
Sleep Panel Testing
Each bedding set is tested by 4+ panelists with different temperature preferences and skin sensitivities over 10+ nights, including multiple wash cycles.
Breathability Testing
We measure air permeability using standardized airflow tests and track skin-surface temperature overnight to quantify cooling or heat-retention properties.
Fabric Hand-Feel Analysis
We evaluate softness, drape, and texture using both tactile panel ratings and a fabric stiffness tester to objectively score hand-feel across materials.
Wash Durability
Each set undergoes 20+ wash/dry cycles following care instructions. We measure pilling, shrinkage, color fastness, and hand-feel degradation post-washing.
Value & Certification Review
We verify certifications (OEKO-TEX, GOTS, Fair Trade), compare price-per-quality across the category, and factor in warranty and return policies.
Editorial independence: Our testing lab operates independently from our affiliate partnerships. Brands cannot pay for higher scores or influence our methodology. Read our full editorial policy and detailed testing methodology.
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