Most throw blanket shopping comes down to guessing. A photo looks cozy, a description says "plush" or "lightweight," and you buy on faith. There is a more reliable way to choose, and it comes down to three things: weight, material and weave.
What Actually Makes a Throw Blanket Warm
The number that matters most is GSM, short for grams per square meter. It measures how much fabric is packed into a given area, and it is the closest thing the textile world has to a warmth spec sheet.
As a rough guide, fleece throws sit around 200 to 350 GSM, cotton runs from 250 to 400 GSM, and wool starts near 350 and climbs past 500 for heavier weaves. Higher GSM generally means more warmth and more weight, while lower GSM means a lighter throw that breathes more easily. It is not the only factor, fiber type and weave affect how the warmth actually feels, but it is the fastest way to compare two blankets that look similar in photos. For a closer look at how GSM is measured and what it means across fabric types, this GSM and warmth guide is a useful reference.
Matching Weight to Season
Once you know a blanket's GSM, matching it to how you will actually use it is simple.
Light, 200 to 300 GSM. Best for warmer months, air-conditioned rooms, or draping over a chair for occasional use. Breathable and easy to fold away.
Medium, 300 to 400 GSM. The most versatile range and the right choice if you only want to own one throw. Enough substance for cooler evenings without overheating a warm room.
Heavy, 400 GSM and above. Built for cold bedrooms, drafty living rooms, or anyone who wants a throw that feels substantial across the whole body. Less breathable, but the warmest option by far.
The Hammora Cloud-Ribbed Throw Blanket sits in the medium range, which is why it works across a reading chair, a sofa, or the foot of a bed without needing a seasonal swap.
Fleece, Cotton or Wool: How the Materials Actually Compare
Fleece is lightweight, easy to wash, and holds warmth well relative to its weight. It is the most practical choice for everyday use and for households with kids or pets, since it dries quickly and resists pilling when it is well made.
Cotton is breathable and durable, with a more natural texture and drape. It performs well across most of the year but is rarely the warmest option at a given weight.
Wool is the warmest per gram, thanks to natural crimp in the fiber that traps air. It is also the highest maintenance, often requiring hand washing or dry cleaning, and the most expensive to produce well.
Blends try to combine the practicality of fleece with a softer hand feel, and quality varies widely depending on the ratio and the finishing process.
Why Weave Changes the Feel, Even at the Same Weight
Two blankets can share a GSM number and feel completely different once you touch them. A ribbed knit, like the weave used in the Cloud-Ribbed Throw Blanket, creates raised channels that trap a thin layer of air along the ribs. That adds a sense of loft and warmth without adding real weight, which is part of why a ribbed throw can feel cozier than a flat-woven blanket of the same GSM.
Flat weaves drape closer to the body and tend to look more tailored. Sherpa and high-pile finishes add loft and warmth but can shed more over time. Ribbed and waffle weaves sit in between, offering texture and structure while staying relatively easy to care for.
Choosing the Right Throw for Your Space
A throw blanket does double duty. It needs to perform for the season, and it needs to fit the room. A few practical starting points:
For a reading nook or a hammock chair, a medium-weight throw in a neutral tone works with almost any setup, and pairs naturally with a piece like the Cocoon Chair With Stand.
For a bedroom, a heavier throw folded at the foot of the bed adds warmth without replacing the duvet, and works well layered near a macramé wall hanging for a softer, textured room.
For a living room sofa, one throw per seating area is usually enough. Two colors from the same family, rather than a single matching set, tends to look more intentional than accidental.
Caring for a Throw Blanket Long Term
Most fleece and cotton throws hold up well to regular machine washing on a gentle cycle with cold water. Skip fabric softener, which can coat synthetic fibers and reduce loft over time. Air drying or a low tumble setting helps ribbed and textured weaves keep their shape.
Wool throws need more care and usually call for hand washing or professional cleaning, which is worth factoring into the decision before buying.
The Short Version
If you want one throw that works across most of the year, look for a medium-weight fabric in the 300 to 400 GSM range, in a weave with some texture rather than a flat finish. That combination covers the widest range of rooms and seasons without asking you to buy twice.
The Cloud-Ribbed Throw Blanket collection is built around exactly that balance, a ribbed knit in the medium weight range, available in seven colors and two sizes.