Kirkland Signature
Kirkland Signature Pima Cotton
Best everyday luxury for budget conscious comfort seekers.
The Kirkland Signature (Costco) Pima Cotton (680 TC) is a sheet model tested by Consumer Reports. It is made from Pima Cotton with a Sateen fabric type. The sheets are designed to fit mattresses up to 18 inches deep, though they do not fit 18-inch mattresses. The product is part of the Sheets test program. Consumer Reports investigates, researches, and tests products to help consumers choose with confidence. Some information on this page may be generated with AI assistance based on CR's data.
$90.00
Owner Satisfaction
4.6
/ 5
Category Rank
399
/ 4395
#399 in Bed Sheets
Price vs Category Average
-46%
Below average
Fiber
Pima Cotton
/ Pima Cotton
Who it's for
- Consumers prioritizing luxurious comfort and a premium tactile experience.
- Shoppers seeking long-term value and robust, high-quality textile products.
- Savvy buyers desiring premium materials without paying luxury brand prices.
Who should skip it
- Individuals without a Costco membership or convenient store access.
- Shoppers desiring a wide array of aesthetic choices and unique design options.
- Buyers who value brand name recognition and exclusive luxury status.
Performance breakdown
Fabric Durability
Pima cotton construction offers exceptional strength and long-term tear resistance.
Surface Finish
Sateen weave provides a signature smooth, lustrous feel against the skin.
Mattress Compatibility
Perfect for standard profiles but struggles with extra-deep mattress depths.
Thread Count Density
High 680 thread count delivers a substantial and premium tactile experience.
Fit Precision
Reliable performance on queen mattresses ensures a snug, secure sleep surface.
Material Quality
Premium Pima fibers elevate the overall softness and longevity of bedding.
Key Specs
Fiber
Pima Cotton
Fabric Type
Sateen
Fits 10-inch mattress
Yes
Fits 14-inch mattress
Yes
Fits 18-inch mattress
No
Thread Count
680
Features
- Durable Pima Cotton construction for strength and tear resistance
- Sateen fabric type for a smooth and lustrous finish
- Designed to fit mattresses up to 14 inches deep
- Tested for fit on queen size mattresses
What customers say
Customers consistently praise the exceptional comfort and luxurious feel of this Pima cotton product, often noting its remarkable softness against the skin. Many reviewers highlight its impressive quality, finding it durable and well made, holding up well after multiple washes without pilling or losing its shape. A recurring theme is the outstanding value for money, with consumers frequently comparing it favorably to much higher priced alternatives. The consensus points to a premium experience at an accessible price, making it a highly recommended choice for everyday luxury.
Know before you buy
A 680 thread count combined with the sateen weave results in a dense, smooth, and slightly lustrous fabric. This construction prioritizes a soft, silky hand-feel while maintaining the durability expected from Pima cotton.
These sheets are designed to fit mattresses up to 14 inches deep. They will not accommodate mattresses that are 18 inches deep, so be sure to measure your mattress height before purchasing.
Pima cotton is known for its longer fibers, which create a stronger, more durable fabric that is less prone to pilling or tearing. This makes the sheets more resilient over time compared to those made from shorter-staple cotton.
The sateen weave features a specific thread pattern that puts more fiber on the surface of the fabric. This creates a signature smooth, soft finish with a subtle sheen that feels more luxurious against the skin than a standard percale weave.
Yes, these sheets have been specifically tested for fit on queen-sized mattresses. As long as your mattress depth is 14 inches or less, they should provide a secure fit.
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$90