For most people, the right weighted blanket is about 8–12% of your body weight, sized close to your mattress (twin/full/queen/king) so it covers you without hanging way off the sides.

Quick Scoop

Rule of thumb (weight):

  • Aim for around 10% of your body weight.
  • Safer comfort range is roughly 8–12% of your body weight.
  • If you’re between two blanket weights, many brands suggest going slightly lighter rather than heavier, especially if you’re new to weighted blankets.

Examples (adults):

  • 130 lb person → about a 13 lb blanket (10% guideline).
  • 150 lb person → about a 15 lb blanket.
  • 190 lb person → about a 19 lb blanket.

Many brands sell in 10, 15, 20, 25, 30 lb steps, so you pick the closest to your target weight.

Size: What “Size” Really Means

When people ask “what size weighted blanket should I get?” they’re usually deciding between:

  • How heavy it should be (weight).
  • How big it should be (dimensions).

Most guides say: pick a blanket roughly the size of your mattress so it fully covers your body but doesn’t drape too far over the sides. If it hangs a lot, the weight can pull it off the bed.

Typical advice:

  • Twin / single bed → twin-size weighted blanket.
  • Full / double bed → full-size blanket.
  • Queen mattress → queen-size weighted blanket.
  • King mattress or sharing with a partner → king-size or dedicated “couple” blanket.

Some manufacturers also stress that height matters: taller people often do better with longer (queen/king) blankets so feet and shoulders are covered.

Couples vs Solo Sleepers

If you sleep alone:

  • Pick around 8–12% of your body weight, sized to your mattress.

If you share a blanket:

  • Some guides suggest about 7.5–10% of your combined body weight, since the weight is spread over two people.
  • Example: A 140 lb + 180 lb couple = 320 lb total → around a 24–30 lb shared blanket, depending on comfort and product options.
  • If one partner likes it lighter or feels claustrophobic, separate single-size weighted blankets can work better.

Kids and Safety Notes

For children, the guidelines are stricter and you should talk to a pediatrician if unsure.

Common rules for kids:

  • About 10% of body weight + 1–2 lb.
  • Example:
    • 40 lb child → 5–6 lb blanket.
* 60 lb child → 7–8 lb blanket.
  • Don’t use very heavy blankets (12–25 lb) on small children; they can be too much.
  • Weighted blankets aren’t recommended for babies or kids who can’t move the blanket themselves or communicate discomfort.

When To Go Lighter or Heavier

Consider going lighter if:

  • You’re prone to feeling claustrophobic or dislike pressure on your chest.
  • You have breathing, circulation, or joint issues (talk to a doctor first).
  • You’re on the smaller side and between two weights.

Consider the heavier end (but still usually ≤12% of body weight) if:

  • You like a very “hugged” or snug feeling and don’t feel restricted.
  • You tend to toss and turn and want more anchoring.

An example scenario: at 150 lb, 8–12% is 12–18 lb. If you’re nervous, start at 12–15 lb; if you love deep pressure and have no medical concerns, you might be fine at 15–18 lb.

Simple Pick-Your-Blanket Checklist

  1. Know your body weight.
    • Multiply by 0.1 (10%) for a starting target.
    • Check if 8–12% gives you a realistic weight based on what’s sold (10, 15, 20, 25 lb, etc.).
  1. Match your mattress size.
    • Choose twin/full/queen/king sized close to your bed so it covers you without big overhangs.
  1. Decide if you’re sharing.
    • Solo: 8–12% of your weight.
    • Couple: around 7.5–10% of combined weight, or consider separate singles.
  1. Factor in health and comfort.
    • Go lighter if unsure, anxious, or have joint/respiratory issues.
 * Make sure you can always move the blanket off yourself easily.
  1. Check return or exchange policies.
    • Many people need a week or two of trial to find their “just right” weight; flexible returns help you experiment.

Mini Forum-Style Take

“Most brands told me 10% of my weight, but honestly I had to try a couple before I found my sweet spot. Started with 15 lb, ended up loving 20 lb at 180 lb. The size that matched my mattress also mattered more than I expected—it stopped sliding off the bed at night.”

This kind of story matches many user reports: the guidelines get you close , but personal comfort ultimately decides.

Quick SEO Bits

  • Main phrase woven in here: what size weighted blanket should i get (both weight and dimensions).
  • Related angles covered: general 10% rule, adult vs child guidance, solo vs couple use, and the idea of an 8–12% comfort range.

TL;DR:

  • Start at 10% of your body weight (8–12% range), pick a blanket roughly the size of your mattress, and when in doubt, choose the slightly lighter option and make sure you can return or exchange if it doesn’t feel right.

Information gathered from public forums or data available on the internet and portrayed here.