Autumn/Winter Fabric Guide: What are the Best Curtain Fabrics for Warmth and Cosiness?

The right curtain fabric can measurably change how a room feels in winter — not just how it looks. Heavier, well-lined curtains reduce heat loss through glass and cut draughts, while thin, unlined fabric does very little beyond dressing the window. If you're choosing fabric for the colder months, here's what actually matters.

Interlining: the part nobody sees but everyone feels

Interlining is a soft, fleece-like layer sewn between the face fabric and the lining. It's the single biggest factor in how warm and substantial a curtain feels — more than the face fabric itself in many cases.

Interlined curtains hang with a fuller, heavier drape, insulate noticeably better against cold glass and draughts, and block more light — handy on darker winter mornings. They do cost more, since there's an extra layer to cut and work into the curtain, but on a larger window, or one that faces north or catches a draught, it's usually the difference that makes the room actually feel warmer, not just look it.

Choosing your face fabric

Wool and wool-blend fabrics Naturally insulating, with a soft, matte texture that suits both traditional and contemporary schemes. Wool takes colour beautifully and has a quiet, substantial look that reads as "expensive" without being showy.

Velvet The classic choice for winter warmth and drama. Velvet has a dense pile that traps air and light in equal measure, which is exactly why it feels so cosy against a cold window. It also catches lamplight beautifully in the evenings, which matters more once the clocks go back.

Heavyweight linen and linen unions A good middle ground — linen unions (linen blended with cotton) offer more structure and weight than pure linen, without tipping into the formality of velvet. A good choice if you want warmth without a heavy, dark room.

What to check before you commit to a fabric

Martindale abrasion rating This tells you how hard-wearing a fabric is — relevant if the curtains will be handled often, sit near a well-used sofa, or you have pets. For curtains, this matters less than for upholstery, but it's still worth asking about if the fabric will get a lot of contact.

Weight and drape Heavier fabrics need a sturdier pole or track and more robust hanging fixtures — worth checking before you fall in love with a fabric your existing track can't support.

Pattern repeat Larger patterns (common in some autumn/winter collections from houses like Sanderson and GP & J Baker) need more fabric to match repeats across widths, which affects both cost and quantity required.

A few autumn/winter-appropriate directions

Trade houses like Romo, Sanderson, GP & J Baker and Colefax & Fowler all release collections with the colder months in mind — richer, deeper tones and heavier weaves tend to feature more strongly in autumn/winter ranges than in their spring/summer collections. If you have a favourite house already, it's worth asking specifically to see their current heavier-weight options rather than their full range, which can otherwise be overwhelming.

Getting it right for your room

There's no single "best" winter fabric — it depends on your window, your light, your colour scheme, and what you're happy to spend. But interlining, weight and weave are consistently what makes a room feel warm and finished once the heating's on and the nights draw in.

If you want to see and feel some options against your own windows and light, that's exactly what a consultation is for — get in touch and we'll find a time.