Weighted blankets generally work best at about 10% of the sleeper’s body weight, with a comfortable range of 5% to 12% for most adults.
For the full breakdown, see our best Budget Weighted Blanket guide.
You have probably read a dozen different formulas, but almost every consumer guide lands on the same starting point. Your weighted blanket weight should be roughly 10% of whatever it will be covering — your body, or the combined weight of two people sharing one blanket. That figure is the safe middle of the 5% to 12% comfort band most brands and sleep experts recommend.
Rather than chasing a perfect number, choose the weight that keeps you comfortable and lets you move. The table below shows the most common starting points by body weight, pulled together from the standard weight charts that keep appearing in consumer guidance.
The Standard Weighted Blanket Weight Chart
Most sizing charts cluster around the same simple math. These figures start at 10% of body weight and round to the nearest available blanket size, which usually comes in 5-pound increments.
| Body Weight | Blanket Weight | Best For |
|---|---|---|
| 100–120 lb | 10–12 lb | Smaller adults and teens |
| 120–150 lb | 12–15 lb | Average adult women |
| 150–180 lb | 15–18 lb | Average adult men |
| 180–200 lb | 18–20 lb | Larger adults |
| Over 200 lb | 20–25 lb | Heavier users |
If you fall between sizes, go with the lighter option unless you already know you prefer deep pressure.
How To Calculate Weighted Blanket Weight Yourself
The formula takes about ten seconds. Weigh yourself or anyone who will use the blanket, multiply that number by 0.10, and you have your starting target. A 160-pound adult lands at 16 pounds, which sits right in the 15–18 lb range on the chart.
For two sleepers sharing one blanket, add both body weights together first, then take 10% of the total. Two 150-pound adults sharing a blanket would aim for about 30 pounds, which is why some guides cap a shared King-size option around 20–30 lb maximum.
Once you have your starting number, adjust within the 5% to 12% band based on comfort. A 160-pound adult could comfortably range from 8 pounds at the very light end up to roughly 19 pounds at the upper limit. Side sleepers, hot sleepers, anyone claustrophobic, and people with joint discomfort should lean toward the lighter end of that range, according to brand guidance from manufacturers like Purple.
Frequently Asked Questions
Can a weighted blanket be too heavy?
Yes. If the blanket restricts your movement, makes it hard to roll over, or feels overwhelming, it is too heavy. Consumer guides consistently warn against choosing a blanket that limits mobility, and brand sizing charts recommend swapping to a lighter option if the weight stops you from moving freely.
What weighted blanket weight should a child use?
Children should not follow the adult 10% rule without caution. Some guides suggest 10% of body weight plus one to two pounds for kids, while others say never exceed 10% for children. Most recommendations agree you should consult a pediatrician or occupational therapist before buying a weighted blanket for a smaller child.
Does bed size matter when choosing a weighted blanket?
Bed size affects the blanket dimensions more than the weight, but the two connect.
References & Sources
- Sleep Foundation. “Weighted Blanket Weight Chart.” Provides the standard 10% body weight rule and weight-by-body-weight chart.
- CNET. “4 Tips for Buying a Weighted Blanket.” Explains the 5%–12% comfort range and adjustment guidance.
- Purple. “How Heavy Should a Weighted Blanket Be?” Brand guidance on lighter options for side sleepers and comfort-based adjustments.