How Heavy Should Your Weighted Blanket Actually Be?
A Sleep Theory Guide
How Heavy Should Your Weighted Blanket Actually Be?
The "10% of your body weight" rule is a fine starting point. It's just not the whole story.
Most weighted blanket advice boils down to one formula: pick something close to 10% of your body weight. It is a reasonable place to start.
But it is a guideline, not a law of physics. A lot of real, satisfied weighted blanket owners land well outside it, on purpose, for good reasons.
Here is the honest version of the sizing conversation, not just the formula.
Where the 10% number actually comes from
The idea is simple. A blanket around one tenth of your body weight gives you noticeable, even pressure, without being so heavy that it restricts normal movement.
For a 150 pound adult, that lands around 15 pounds. For 200 pounds, closer to 20. It is a reasonable starting formula, built for the average case.
The problem: you are probably not the average case
Sleep researchers and bedding brands themselves do not even agree on one number. Recommendations across the industry actually range anywhere from about 5% up to 12% of body weight, not a single fixed 10%.
That is a real range, not rounding error. Where you land inside it depends on things a single formula cannot see: how warm you sleep, whether you are new to weighted blankets, and simply what you personally find calming versus smothering.
Good reasons to go lighter than the formula says
Plenty of people land below 10% on purpose, not by accident. A few real patterns:
First-timers often find a lighter blanket much easier to adjust to than jumping straight to the heaviest option.
Hot sleepers frequently get more consistent use out of a lighter, more breathable blanket than a heavier one they end up kicking off at 2am anyway.
Couples sharing a bed usually land on a moderate weight as a compromise, since the math changes once two people are under one blanket.
What actually matters more than hitting the number exactly
A blanket that is mathematically correct for your body weight but overheats you by midnight is not doing its job. In practice, three things matter more than the precise percentage:
Whether you reach for it every single night. Whether it breathes well enough that heat does not force you to kick it off. And whether the weight is spread evenly, since how the weight is built into the blanket changes how it feels far more than the number on the tag.
A simple way to actually decide
If you are new to weighted blankets, run warm at night, or want something breathable enough for the couch and the bed alike: start with our 7lb option.
If you sleep cooler, have used a weighted blanket before, and want to land a little closer to that classic 10% guideline: our 10lb option gives you more pressure while keeping the same breathable, no-bead knit.
There is no wrong answer here. Just a trade-off between more pressure and a blanket you will actually reach for every night. The second one wins, every time, over a blanket that is "correct" on paper but sits in the closet.
See The Full Spec
Now in 7lb and 10lb, both breathable first.
Steady, even pressure in a chunky, open knit that actually lets your body breathe — pick the weight that fits how you actually sleep.
This is general sizing information, not individualized medical guidance. If you have a health condition affecting circulation or breathing, check with a doctor before using a weighted blanket.