Should You Wash New Sheets Before Using Them (And Why)?

You should wash new sheets before using them for the first time to remove dust or allergens, make your bedding softer, and even help it fit better.

We spoke to experts at 6 of the leading sustainable bedding brands including Boll & Branch, PlushBeds and Sleep & Beyond, and found that every one recommends washing sheets first.

In this guide you will learn why you need to wash brand new sheets and bedding, how to do it, and what happens if you don't.

Why Should You Wash New Sheets and Bedding?

The main reason to wash new sheets and bedding before using them is to get rid of any dust, residues, and potential contaminants from manufacturing and packaging. Washing helps make sure your bedding is fresh and hygienic, and free of any irritants that might trigger allergies or sensitivities.

Some organic bedding brands like Boll & Branch, recommend washing sheets first because they design fabrics slightly oversized to allow for shrinkage.

Other brands, like Sleep & Beyond, note that their sheets become softer with each wash, so laundering them first helps you get a more comfortable feel from day one.

The following table provides a summary of the bedding manufacturers we surveyed, detailing the materials used, whether washing before first use is recommended, and the specific care instructions provided by each brand.

Cheaper synthetic bedding products are often treated with chemicals, dyes, or preservatives that may cause skin irritation ("Fabrics for atopic dermatitis" by Rupert Mason, 2008). Washing synthetic bedding may reduce surface chemical residues but does not eliminate all embedded substances.

What Happens if You Don't Wash New Sheets?

If you don’t wash new sheets before using them, you may be exposed to dust, lint, and microscopic debris that accumulate during manufacturing and storage.

There is no conclusive evidence that unwashed sheets cause permanent harm, but particles can trigger allergies, cause itching and skin irritation, or lead to respiratory discomfort, especially for those sensitive to airborne contaminants.

Unwashed bedding may also retain excess fibers or weaving residues that affect breathability and texture.

Some sheets (such as Boll & Branch) arrive slightly oversized by design to account for natural shrinkage. In these cases, if you skip the first wash, it results in a loose or improper fit.

To maintain hygiene and the integrity of your bedding materials, proper washing techniques are essential.

How to Wash New Sheets

To wash your sheets properly, follow these steps.

1. Check the care label. Read the manufacturer’s instructions to ensure the correct washing method for your bedding item.
2. Use a mild, natural detergent. Choose an eco-friendly detergent that's free from synthetic fragrances, especially for organic bedding.
3. Select a gentle wash cycle. Use cold water (below 30°C / 86°F) or warm water (between 30-40°C / 86-104°F) for washing. to protect fibers and prevent shrinkage, unless the care label states otherwise. This is especially important for sateen, percale, linen, and bamboo sheets, or dark colors, which can fade in hot temperatures.
4. Wash separately. Avoid mixing sheets with other laundry to prevent pilling and fiber damage.
5. Skip fabric softeners and dryer sheets. These can leave residue that reduces absorbency and breathability.
6. Dry on low heat (below 55°C / 130°F) or line dry. Excessive heat can weaken fibers and cause shrinkage. Air drying helps maintain the integrity of your material, leaves a fresh scent, and saves energy and money.
7. Run an extra rinse cycle if needed to remove any excess deposits, especially for newly manufactured sheets.

How Often to Wash New Sheets

Dr. Lisa Ackerley, a Chartered Environmental Health Practitioner, recommends washing bedding once every week generally, or once every two weeks if you shower before bed and sleep in pajamas.

If you sleep with pets in your bed, we recommend increasing the frequency to 2-3 times per week.

These instructions apply to all other bedding types, including blankets, mattress pads and comforters, although these do not need to be washed as often. The method also applies to children's bedding.

Should You Wash Crib Bedding Before Use?

Yes, you should always wash crib bedding before use because babies have sensitive skin and developing immune systems, and are more vulnerable to irritants in unwashed fabrics.

To ensure safety, wash crib sheets, blankets, and mattress covers with a gentle, fragrance-free detergent. Avoid softeners and harsh chemicals, as they can leave behind residues that may cause skin irritation.

Using a warm water cycle can help eliminate bacteria and dust mites, but always check the care label to prevent damage.

Should You Wash a New Blanket Before Use?

Yes, you should wash a new blanket before using it to remove any fibers, loose threads, or environmental particles it has picked up during production, which may affect cleanliness and comfort.

The best washing method depends on the fabric. Check the care label and use a gentle detergent like Seventh Generation or Ecover, which are free from synthetic fragrances and harsh chemicals

For organic blankets, washing preserves the purity of the material by removing any natural fiber debris. A low-heat or air-dry method helps maintain softness and prevents shrinkage.

Should I Wash a New Comforter Before Use?

Yes, you should wash a new comforter before use. Comforters are often stored in plastic packaging, which can trap odors and moisture, leading to a stale or unpleasant smell.

Since comforters are bulkier than sheets, check the care label to determine if machine washing is safe. Use a large-capacity washer with a mild, natural detergent and a gentle cycle.

If the comforter is too large for a home machine, use a commercial washer at a laundromat. For down or wool-filled comforters, spot clean or use professional laundering to protect the filling.