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Costco Sheets: Stunning Quality, The Best Sleep Investment

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Ben Trapskin

I have carefully studied and evaluated many mattresses, sheets, pillows, duvet inserts, comforters, sleep gadgets, and adjustable beds for over a deca... Full Bio
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Are Costco Sheets Good? (2025 Guide & Comparison) | Yawnder

2025 Buying Guide

Are Costco Sheets Good? A 2025 Comparison with Brooklinen & Boll & Branch

As someone who’s tested everything from warehouse deals to high-end linens, here’s the honest rundown—where Costco’s Kirkland Signature stacks up against Brooklinen and Boll & Branch.

Heads up: This post contains affiliate links, including Brooklinen. We may earn a commission at no extra cost to you.

Kirkland Signature 680 TC sheet set packaging
Kirkland Signature 680-thread-count Pima cotton sheet set

Quick Summary

Costco’s Kirkland Signature sheets deliver premium materials and construction at roughly a third of the price of Brooklinen or Boll & Branch. The trade-offs? Fewer color choices, limited seasonal stock, and a slightly heavier sateen feel. But for the price, it’s hard to find a smoother, longer-lasting set.

My Personal Experience

I’ve rotated through Kirkland Signature, Brooklinen Luxe Sateen, and Boll & Branch Signature Hemmed over the past few years, alternating them seasonally. Here’s what stood out:

  • Kirkland Signature: After a year of weekly washes, the 680TC Pima sheets still feel smooth with minimal pilling. They’re a touch heavier, which feels cozy in winter. Grip-On corners are a quiet hero—these things stay put.
  • Brooklinen Luxe Sateen: I picked up the Luxe set during a sale. The drape and sheen are next-level. They wrinkle a bit more, but the silky feel makes up for it. They’re slightly warmer but look high-end. Here’s their latest pricing.
  • Boll & Branch Signature Hemmed: The softest percale I’ve slept on. Breathable, crisp, and cool—the opposite of slick sateen. After two years, they’ve mellowed into that perfect “broken-in” hotel texture. The cost, though, stings.

If I had to assign them: Boll & Branch wins for comfort, Brooklinen for aesthetics, Costco for value.

Comparison Table: Costco vs. Brooklinen vs. Boll & Branch

Brand Material Weave / Feel Thread Count Price Range (Queen) Notable Features Verdict
Kirkland Signature (Costco) 100% Pima Cotton Sateen – smooth, slightly heavy 680 $59–$79 Grip-On corners, easy returns, long-staple cotton Unmatched value; premium feel under $80
Brooklinen Luxe Sateen 100% Long-Staple Cotton Sateen – ultra-smooth, drapey 480 $159–$189 OEKO-TEX certified, deep pockets, 1-year warranty Luxurious finish; slightly warmer feel
Boll & Branch Signature Hemmed 100% Organic Long-Staple Cotton Percale – crisp, breathable, matte ~300 $229–$279 GOTS certified, ethically sourced, lightweight Top-tier comfort for hot sleepers; premium price

Prices accurate as of October 2025. Costco pricing reflects typical online/in-store range; Brooklinen and Boll & Branch from official sites.

Construction & Fit

  • Kirkland: Pima sateen weave; Grip-On corners hold to deep mattresses (up to ~15").
  • Brooklinen: Luxe Sateen; double long-staple cotton, tighter weave, slightly shorter fit on extra-thick beds.
  • Boll & Branch: Signature percale weave; organic cotton, airy and crisp with reinforced seams.

Buying & Sales Notes

  • Costco: Sales often appear during bedding season—expect 15–25% off in rotation.
  • Brooklinen: Frequent bundle discounts; best time to buy is during major holidays or anniversary sales.
  • Boll & Branch: Rarely discounts more than 15%; limited seasonal offers on select colors.

Final Thoughts

If you want dependable, luxurious-feeling sheets without paying triple digits, Costco’s Kirkland set is a quiet powerhouse. They’re durable, soft, and carry that rare “sleep better tonight” factor. Brooklinen brings hotel-grade polish and brand cachet, while Boll & Branch is for those chasing ultimate softness and sustainability.

My current rotation: Boll & Branch in summer, Brooklinen Luxe for guests, and Costco’s Kirkland for everyday reliability. It’s a mix that nails comfort, quality, and cost across seasons.

Try Brooklinen Luxe Sateen Sheets if you want a more refined drape, or stick with Costco’s Kirkland if you just want premium sleep at a fraction of the price.

© 2025 Yawnder. Updated with current pricing, sizing, and firsthand testing data.

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