How — and how often — to wash sheets and comforters, according to experts

CNN —  

Washing bed sheets seems pretty straightforward, as far as laundry goes. Unfortunately, a lot of people are washing their bedding all wrong — and, compounding the confusion, many of the old rules of laundry we grew up with have changed along the way.

To clear things up, and get some firm guidelines, we spoke with laundry and bedding experts about the right way to wash sheets, duvets and comforters, including the question everyone wants answered: How often are we supposed to be washing those sheets, anyway?

Katie Elks, the director of design and product development at Brooklinen, says, “For all sheets, we recommend washing in a cold or cool cycle.” Brian Sansoni, the senior vice president for communications of the American Cleaning Institute, echoes those guidelines, “Most laundry can now be done in cold water. That should be the default.” Sansoni explains that cold water is “usually just as effective, but it’s more sustainable and your sheets will last longer,” because cold water washing reduces wear and tear, as well as fading.

Tide Pods Coldwater Clean ($21.49, originally $24.99; amazon.com)

Elks says that people should own at least two sets of sheets to increase longevity. It’s also wise to have more than one sheet set for days when you don’t have time to wash sheets and put them right back on the bed or, more crucially, in case someone soils the sheets and an immediate changing of the bed linens is required.

Brooklinen Classic Core Sheet Set ($126.65, originally $149; brooklinen.com)

Both Elks and Sansoni recommend separating sheets into light and dark loads, although modern technology has rendered this rule less absolute than it used to be. Because cold water is now the standard for washing, the need to separate textiles by color is less important than separating by fabric type. If you do opt to wash dark and light sheets together, and dye transfer is a concern, use an in-wash color catcher to capture any loose dyes before they can stain lighter-colored items.

Shout Color Catcher Sheets for Laundry, ($4.22; amazon.com)

However, Sansoni notes that if all of your sheet sets are dark-colored, you may want to “consider a detergent for darker fabric that is intended to reduce fading.”

Woolite Darks Liquid Laundry Detergent ($14.39, originally $16.29; amazon.com)

When it comes to stains, you should pretreat small stains as they occur, and use a laundry booster if all-over staining is an issue. Protein stains like sweat, which are common on sheets, are best treated with an enzymatic stain remover, like Zout, while Shout is best for food and drink stains, like chocolate or coffee.

Zout Triple Enzyme Formula Laundry Stain Remover ($7; amazon.com)

Shout Laundry Stain Remover, 2-Pack ($16.90; amazon.com)

The basics:

One of the biggest shifts in the way that we do laundry is the move to using cold water as the default for all washing. Typically, people have been taught to use hot or warm water for whites and lights, especially for items like sheets and towels. But thanks to advances in both washing machine technology and detergent formulations, hot water is no longer needed in most laundering scenarios.

Jessica Zinna, a senior scientist for Procter & Gamble, explains why you should consider making the switch to cold water when doing laundry. “Switching to a cold water wash is not only beneficial for your clothes and your wallet, but for the environment, too,” she says. “Up to 90% of the energy used during the laundry process goes towards heating the wash water for warm or hot cycles.”

Moving away from a dependence on hot water washing will also extend the lifespan of your sheets and bedding. “Washing in hot water can be damaging to clothes, sheets, towels, etc., because it can cause dye loss and shrinkage,” Zinna says.

Zinna notes that all Tide detergents are formulated with cold water cleaning chemistry, but she especially recommends the brand’s Hygienic Clean detergent because it contains enzymes and surfactants specially designed to provide superior cleaning in cold water.

Tide Hygienic Clean Heavy 10x Duty Power Pods ($17.03, originally $20.99; amazon.com)

Sansoni agrees that cold water should be the default but mentions that there will be times when using hot or warm water is called for. “If someone sleeping in that bed is ill, you may want to wash in warmer water and use a laundry sanitizer,” he says. “If you have asthma or allergies, hot water can help kill dust mites (a common trigger).”

Lysol Laundry Sanitizer Additive ($9.97, originally $10.99; amazon.com)

The basics:

Both Elks and Sansoni recommend line-drying as the ideal way to dry sheets. “If it’s a nice day, drying on a line, out of direct sunlight, is a good option,” Sansoni says.

Honey-Can-Do T-Post Outdoor Line ($42.99; amazon.com)

If outdoor line-drying isn’t an option for you, but your laundry room or another space in the home allows for it, you might also consider indoor line-drying. “For all sheets, we recommend line-drying to preserve original fibers, colors and elasticity,” Elks says.

Yameaer Retractable Clothesline ($25; amazon.com)

If machine-drying sheets best fits your laundering needs, Elks and Sansoni say that opting for a low heat and tumble setting is the best choice. Sansoni adds that using the dryer’s moisture sensor feature, if your machine features one, is a good way to avoid overdrying sheets, which can cause fading, shrinkage and a weakening of the fibers.

And, to avoid wrinkling, it’s best to remove sheets immediately from the dryer.

The basics:

Most comforters and duvets can be machine-washed, though Sansoni reminds us to “read the tag, if still attached, and follow those directions,” because bedding materials and fabrications can vary widely.

Pretreat any stains first, then machine-wash the comforter or duvet using a gentle cycle. Sansoni cautions against a common mistake people make when doing laundry: Over-detergenting. “Read the detergent label to use the right amount, as too much can potentially leave residue.”

If the drum of your home washer is not large enough to fit a duvet, Elks recommends spot treating; stuffing it into a washer that is too small can damage a comforter’s baffle box construction.

“We recommend caring for your comforter with regular fluffing,” Elks says, “and spot cleaning with soft soap, like Woolite.”

Woolite Delicate Care Liquid Laundry Detergent ($13.99; amazon.com)

When a comforter or duvet needs a deeper clean, Elks says, you can take it to the dry cleaner. Another good option when a comforter or duvet needs more than spot treating is to make use of a local laundromat, which will have oversized machines that are plenty large enough to accommodate bulky bedding.

It may surprise you to learn that a comforter or duvet can also be cleaned in the dryer — Elks suggests “using a dryer on the no heat setting to fluff and freshen” a comforter. “Regular fluffing helps keep comforters lofty and plush,” she says.

The basics:

When it comes to drying a comforter or duvet, Sansoni recommends using the dryer on a low setting, and stopping the drying cycle periodically to break up any lumps in the filling. Using dryer balls will also help to fluff the duvet and ensure even distribution of its stuffing.

Whitmor Dryer Balls Blue ($7.73; amazon.com)

Make sure the duvet is fully dry before putting it away or back on the bed.

The basics:

This is the question everyone wants an answer to — how often should people wash their sheets?

“Every 1-2 weeks,” Sansoni says, adding that “weekly is better, especially if you have a dust mite allergy or during the summer when you’re probably sweating more.”

Elks agrees. “We suggest washing your sheets every two weeks and alternating between two different sets to increase longevity. If you sweat a lot in your sleep, washing more often will help keep your sheets feeling fresher.”

Some other factors to consider when determining how often to wash your sheets:

The basics: