A weighted blanket is exactly what it sounds like -- a blanket with evenly distributed weight sewn in -- and the gentle, all-over pressure is why so many people find one calming and settling at bedtime. But two details separate a blanket you sink into happily from one that feels like a punishment: the weight and the fill. Get those right and the rest is comfort and fabric. This guide walks through how to size one to your body, what is inside it, and how to keep it from cooking you at night.

The Weight Rule: About 10 Percent of Your Body Weight

The most repeated guideline -- and a good starting point -- is to choose a blanket around 10 percent of your body weight. So a 150-pound adult lands near a 15-pound blanket; a 200-pound adult, around 20. Blankets commonly come in 5-pound steps (10, 12, 15, 18, 20, 25 pounds), so round to the nearest option. A little heavier can feel more grounding; too heavy feels trapping and makes it hard to turn over. If you are between sizes or new to weighted blankets, size down -- you can always want more, but too much weight just gets left in the closet.

Safety matters here: weighted blankets are not for infants or toddlers and not for anyone who cannot easily move it off themselves. For young children, follow the specific weight and age guidance on child-sized versions rather than the adult rule, and when in doubt check with a doctor.

Size It to Your Body, Not Your Bed

This is the mistake almost everyone makes: buying a weighted blanket to match the mattress. Because the weight needs to stay on you, a weighted blanket should roughly match your body size, not the bed. If it is much larger than you, the fill slides off the sides and pools on the floor, taking the pressure -- and the weight you paid for -- with it. For a shared bed, the usual answer is two individual weighted blankets, each sized and weighted to its sleeper, rather than one oversized blanket that never sits right on either person. Single-person blankets around throw-to-full size are the sweet spot.

What Is Inside: Glass Beads vs. Plastic Pellets

Glass microbeads are the premium fill -- fine, sand-like, and dense, so they add weight without much bulk. That means a thinner, more even, more drapeable blanket that also sleeps cooler. They are quieter and machine-washable in most cases. This is the fill to prefer.
Plastic poly pellets are cheaper and larger, so the blanket is thicker and lumpier, can be slightly noisy when it shifts, and traps a bit more heat. Perfectly serviceable at a lower price, just less refined.

Whatever the fill, look for small sewn pockets in a tight grid. Small squares keep the weight evenly distributed so it cannot migrate to one corner; large pockets let the fill slosh and bunch. Even weight distribution is the whole point, so this stitching detail matters more than the marketing.

Fabric and Temperature

Weighted blankets sit close to the body, so heat is the number-one complaint. Choose fabric for your sleep temperature:

Cotton is breathable and all-season -- the safe default.
Bamboo-derived (viscose) and cooling covers wick heat and feel cool to the touch -- best for hot sleepers.
Minky / fleece is plush and warm -- cozy for cold sleepers and winter, too hot for many in summer.

A removable, washable duvet-style cover is worth seeking out: it keeps the (harder-to-wash) weighted insert clean and lets you swap a warm cover in winter for a cooling one in summer. Check the care label -- heavier blankets can exceed home-machine capacity and need a laundromat machine.

Common Mistakes

Buying to fit the mattress. Oversized blankets slide off and lose their pressure. Size to the person.
Going too heavy. Too much weight feels trapping and gets abandoned. When unsure, size down.
Large fill pockets. They let weight bunch to one side. Look for a tight, small grid.
Ignoring heat. A minky blanket on a hot sleeper is a nightly regret -- match fabric to temperature.
Using one on an infant or toddler. Not safe -- follow age-specific guidance.

Style It Into the Bedroom

Off the bed, a weighted blanket is bulky, so most people fold it over the end of the bed, a chair, or a blanket ladder -- which means its cover becomes part of your room's palette. Preview how a folded throw and layered bedding look in your space by uploading a photo to Room Reveal and trying different colors and textures. Pair this with our guides to choosing a throw blanket, choosing bedding, and choosing a duvet vs. a comforter. For full-room inspiration, browse coastal bedroom ideas and modern bedroom ideas.

How to Choose a Weighted Blanket: Weight, Fill, and Fabric