Before the Weighted Gravity Blanket went on the site, we put it through a specific set of checks — not just "does it feel nice," but the measurable things that actually predict whether a weighted blanket holds up over years of regular use.
We'd rather show our work than just claim quality. Here's specifically what we checked before deciding the Weighted Gravity Blanket was ready for the Calm line — and where we're still keeping an eye on things.
Weight Accuracy
We weighed sample units directly rather than relying on the fill supplier's stated weight alone. The target was 6.8kg with a tight tolerance — a blanket that's meaningfully off its stated weight undermines the entire point of matching it to a body-weight guideline.
Fill Distribution
We checked the stitched grid by hand across multiple sample units, feeling for any pockets that were noticeably lighter or heavier than their neighbors. Even, consistent distribution was the bar — any unit with a perceptible unevenness was flagged rather than approved.
Repeated Wash Testing
Sample units went through multiple wash-and-dry cycles using the cold-water, gentle-cycle method outlined in our own care guide, checking for fill clumping, seam integrity, and colour retention after each round. This is the test that most directly answers the real question: does it still feel and perform the same after month three as it did on day one?
Third-Party SGS Testing
Why third-party testing matters: our own internal checks are useful, but they're not independent. SGS testing on the fill material and construction gives an outside verification that the product meets recognised safety and quality benchmarks, rather than relying solely on our own assessment.
What We'd Still Improve
In the interest of being straightforward: early samples had a slightly looser stitch pattern along the edge seams than we wanted, which we corrected before the version currently on the site. It's a reasonable example of why testing multiple rounds matters — the first sample isn't always the one that ships.
Where This Fits
This process is what's behind the specs listed on the product page — 6.8kg, glass microbead fill, SGS-tested, 152 × 203cm. Not just numbers on a page, but the result of the checks above.
Weighted Gravity Blanket · Slate
6.8kg, glass microbead fill, 152 × 203cm, SGS-tested construction.
Shop the BlanketNightfall Weighted Eye Mask · Dusk Violet
Same testing standard, same glass microbead fill, scaled down for the face.
Shop the Eye MaskWhat you don't see is what we spent the most time on.
Full specs and testing details live on the Weighted Gravity Blanket · Slate product page.
Frequently Asked Questions
What does SGS testing actually verify?
SGS is an independent testing and certification body — testing on a product like this typically covers material safety and construction quality, providing outside verification rather than relying only on the brand's own claims.
How many wash cycles were sample units tested through?
Multiple full cycles using the same cold-water, gentle-cycle method recommended in our care guide, checking fill distribution and seam integrity after each one.
Why mention a flaw you found and fixed rather than just the final result?
Because it's true, and it's a more honest picture of how the product actually got to where it is — testing is meant to catch and correct issues, not just confirm what already works.