Weighted Blankets: What the Specs Actually Mean

Weighted blankets look alike folded on a shelf, and the marketing language around them is close to interchangeable. Four published specifications account for most of the practical difference: the weight options offered, what physically creates that weight, the fabric, and the washing instructions. This guide explains what each one changes once the blanket is on your bed, then lays three out side by side.

Weight options, and the size that comes with them

The common sizing rule is roughly ten percent of body weight, so a 150 lb person usually lands on a 15 lb blanket. It is a starting point rather than a measurement, and heavier is not automatically better — past a point the weight reads as restrictive instead of calming, which is why sizing down between two options is the usual advice.

What the spec sheet adds is how much choice you get. One blanket here publishes ten weights from 7 lb to 50 lb across five bed sizes; the other two publish four weights each. Check how weight and dimensions are tied together, because they are not always independent. The Bearaby’s size changes with its weight — 10 lb is 40 x 64 in, 25 lb is 48 x 72 in — so you cannot order a heavy blanket in a small footprint. Blankets sold by bed size let you set the two separately, which matters if you are heavier than average but sleeping in a twin.

Beads or knit: what actually creates the weight

Most weighted blankets are quilted, with glass beads sewn into pockets that stop the fill pooling at one end. Pocket size is the published figure to look for — the YnM states 2 x 2 in pockets, Baloo states three different pocket sizes — and smaller pockets generally mean the weight stays where it was sewn for longer.

The Bearaby takes the other approach: no fill at all, with the weight coming from the density of the knit itself. That removes the failure mode of bead blankets, where fill migrates or clumps, and the faint shifting sound beads make when you move.

Fabric decides whether it sleeps hot

A quilted bead blanket is at minimum two layers of fabric with a filled cavity between them, which traps air by construction. An open-knit blanket has gaps you can see through. That structural difference does more for airflow than the fibre name on the label.

The fibre still matters at the margins. TENCEL and bamboo-derived viscose are both marketed for moisture-wicking. Note how specific each maker is willing to be: one publishes an exact 52% TENCEL and 48% organic cotton split, one publishes 100% cotton including the lining, and one names the fibre without publishing percentages at all. An unpublished composition is not a bad one, but it is not something you can compare before buying.

Washing instructions are a real constraint

This is the spec most people read after the purchase rather than before. A 20 lb blanket soaks up water and can exceed what a domestic washer is rated to spin, which is why Baloo publishes that its King size requires a commercial machine and Bearaby publishes that top-loading machines should be avoided — an agitator post is hard on an open knit.

If you expect to wash the blanket often, either check that a removable duvet cover is offered, or check the published care instructions against the machine you own. One of the three does not publish care instructions on its product page at all, which is a real gap for an item this heavy.

Matching the specs to your bed

• Sizing for one person on a shared bed — weight options first, and a throw-sized footprint so it does not drag off the mattress.
• You sleep hot — construction before fibre: an open knit moves more air than any bead-filled fabric.
• You will wash it regularly at home — published care instructions and your washer’s rated capacity, not the fabric name.
• You are outside the common weight or bed size — the breadth of the published weight and size grid, which varies more here than anything else.

Frequently asked questions

Are weighted blankets suitable for everyone?

Most healthy adults use one sized to their body weight without difficulty. They are generally not recommended for young children, and anyone with a respiratory or circulatory condition should raise it with a doctor first, since reduced freedom of movement is not appropriate in every situation.

Can I wash a weighted blanket in a regular washing machine?

It depends on the weight and your machine. Glass-bead blankets are heavy dry and heavier wet, and a standard home washer may be over its rated load. Read the published care instructions for the exact model — Baloo states its King size needs a commercial washer, Bearaby states top-loading machines should be avoided — and consider a removable cover you can wash separately instead.

Will a weighted blanket be too warm in summer?

That is set by construction more than by weight. A quilted bead blanket traps air between its layers by design, while an open-knit blanket has visible gaps for air to move through. Fibre choice adjusts this at the edges, but it does not override the structure.