by Quick answer: SHEEX uses athletic performance fabric (polyester-spandex) that genuinely cools — hot sleepers and night-sweaters love them. The honest catches: the silky feel is "slippery" to some, the fitted sheet can stretch and lump, and there are real customer-service/returns complaints. A specialty tool, not for everyone.
By the MattressNut editorial team · Updated June 2026
SHEEX Overview
Founded in 2007 by two former college basketball coaches, SHEEX adapts moisture-wicking athletic fabric for bedding. The flagship Original Performance set is 87% polyester / 13% spandex, engineered to transfer body heat far more effectively than cotton. Other lines use nylon/spandex or TENCEL (Arctic Aire·MAX). This is a performance product, not a natural-fiber sheet.
SHEEX Specs (what we could verify)
| Spec | SHEEX |
|---|---|
| Type | Performance fabric; Original Performance is 87% polyester / 13% spandex (TENCEL and nylon lines also offered) |
| Price | Premium; ~$179+ for a Queen Original Performance set |
| Trial / returns | 60-night return and exchange; free shipping over $150 (sale items may be non-refundable) |
| Warranty | 1-year warranty against manufacturing defects (tearing/unraveling not from misuse) |
| Where sold | sheex.com plus Amazon, Walmart |
Performance & What Owners Report
For the target buyer, these deliver — repeat owners call them the coolest, best-fitting sheets they've used, even on 17-inch mattresses. The honest downsides: the fabric is silky to the point of slippery for some, the fitted sheet can stretch and form lumps, and there are reports of snagging, first-wash color bleed, and fraying. More concerning are recurring complaints about shipping delays and difficult refunds when buying direct — buying via Amazon or Walmart can sidestep that.
The Saatva Sheets Alternative
If you want cooling without the synthetic, slippery feel, a breathable natural fiber is the cross-shop. Saatva's Organic Sateen Sheet Set ($165–$275) is GOTS-certified organic cotton — Saatva also offers a percale set marked "best cooling" if crispness matters most. You give up SHEEX's extreme heat-transfer fabric, but you gain a natural hand-feel, free shipping, a 45-night trial and a 1-year warranty backed by a more consistently reviewed returns process.
Who Should Consider SHEEX
Hot sleepers, night-sweaters and athletes who want maximum cooling and like a slick performance-fabric feel — and who'll wash on cold/low to protect the spandex.
Bottom Line
The right tool for a specific problem (overheating), undercut by a love-it-or-hate-it slippery feel and direct-order service complaints.
Bottom line: Best-in-class cooling for hot sleepers, but the slippery feel and direct-buy service issues are real.
Shop Saatva Organic Sheets - 45-night trial
Related: our Saatva sheets guide.