Down Comforter Cleaning: The Fall Bedding Changeover

Down comforter cleaning is the one piece of fall housekeeping that most Hamptons households skip, and it is the reason a comforter that was warm three winters ago now feels thin. A comforter absorbs roughly a pint of perspiration per person per week through the duvet cover, and those oils coat the down clusters until they can no longer trap air. The fill is not gone. It is matted, and cleaning is what brings it back.

How Often Should You Clean a Down Comforter?

Clean a down comforter once every one to two years, and always before it goes back on the bed after a summer in storage. A comforter used nightly under a washed duvet cover falls at the two-year end of that range. One used without a cover, or slept under by pets, needs cleaning every season. September is the natural moment for it in the Hamptons, because the comforter is coming out of a closet that held humid air all summer and the first cold nights are still a few weeks away.

Why Does a Down Comforter Lose Loft?

Down loses loft because body oils and skin cells weigh down the individual clusters and glue their filaments together. A clean down cluster is a three-dimensional sphere of fine filaments that holds still air, and still air is what makes the comforter warm. Once that cluster is coated, it collapses into a flat knot, and no amount of shaking or airing will reopen it. Professional cleaning dissolves the oils without stripping the natural lanolin the feathers need, then dries the fill completely so the clusters re-expand.

Can You Wash a Down Comforter at Home?

A home washer and dryer cannot reliably dry the core of a king-size down comforter, and a comforter that is dry on the outside and damp inside the baffles will mildew within days. Residential dryers run too small and too hot for the job. The fabric shell dries in an hour while the fill at the center is still wet, and the heat that would dry it faster scorches the shell. Full drying of a down comforter takes several hours of controlled low heat with room for the piece to tumble freely.

What Should You Do With Summer Bedding in September?

Summer bedding should go into storage clean, because any soiling left in cotton or linen oxidizes over the winter into yellow marks that are significantly harder to remove in spring.

• Wash or send out every piece before storing it, including the ones that look clean. Invisible body oil is what yellows.
• Store linens in cotton or muslin, never plastic. Sealed plastic traps humidity against the fibers and produces mildew and permanent yellowing.
• Skip the starch on anything going into storage. Starch is a food source for silverfish and moths.
• Fold on different lines each year. Fibers weaken along a permanent crease, and old linens split at the fold first.
• Air the winter comforter for a day before it goes on the bed, then give it a firm shake to redistribute the fill.
• Keep storage below 70 degrees and out of direct light, which fades and weakens natural fibers over a season.

What Does Bedding Cleaning Cost?

At Sweetwater's Cleaners, down comforters start at $87.50, duvet covers at $68.50, and quilts and blankets at $75.50. Sheets are $25.50 for a top sheet and $27.50 for a fitted sheet, with pillowcases at $17.50. Every piece of linen is hand pressed rather than run through a press, which is a heated machine that flattens a whole panel at once and leaves hard creases at the hems and seams. Hand pressing is what French-style cleaning means, and on bedding it is the difference between a sheet that lies flat and one that holds fold lines.

The fall calendar is short. Send the down comforter for cleaning in September while the weather is mild, store summer linens clean and unstarched in breathable cotton bags, and let the comforter loft for a full day before the first cold night. Sweetwater's Cleaners handles down comforter cleaning and fine linen care at our Wainscott shop on the Montauk Highway, where all work is performed onsite, with free weekly pickup and delivery across the Hamptons.