When it comes to bed sheets, just about everyone has done the same thing: buy a new set, take it out of the packaging, put it straight on the bed, and sleep on it that night without giving it a second thought.
On the surface, it makes sense. They’re new. They’re packaged in plastic or a box. How dirty could they really be?
The answer is probably more interesting than you think. Once you understand what happens to fabric between the factory and your bedroom, you may never want to skip that first wash again.
Why Your Bed Sheets Have Been Other Places Before They Got to You
This is the part most people rarely consider.
A bed sheet has a surprisingly long journey before you finally unfold it at home. The process starts in a manufacturing facility, where large quantities of fabric are handled by both workers and machinery. The material is cut, stitched, dyed and finished, sometimes passing through several different stages and facilities along the way.
Once manufacturing is complete, sheets are treated with various finishing chemicals. These serve practical purposes during manufacturing and retail. They help keep the fabric smooth and crisp, reduce wrinkles during storage and transportation, and give the sheet that bright, fresh appearance that looks appealing on a store shelf or in a product photograph.
These finishes aren’t necessarily harmful. However, they are still chemicals that can remain in the fibres until the fabric is washed. If you knew you were going to spend eight hours every night sleeping directly against them, you would probably prefer to wash them out first.
After finishing, the sheets are folded, packaged and placed into storage. Depending on where they’re manufactured and how long they spend moving through the supply chain, a sheet could remain in storage for weeks or even months before reaching a distributor, retailer and eventually your home.
During that journey, the fabric can be exposed to dust and other particles in the surrounding environment.
If you purchased the sheets from a physical store, there’s another consideration. They may have been handled by other customers before you. Packaging may have been opened, sheets touched, inspected and refolded before being returned to the shelf.
Even sealed packaging doesn’t necessarily mean the fabric inside has been completely isolated from its surroundings. Most retail packaging isn’t airtight, so dust and other airborne particles can accumulate over time.
The Chemical Finish Is the Biggest Consideration
Of all these factors, the finishing chemicals are probably the most relevant to the person who is going to sleep on the sheets.
Formaldehyde is one chemical that has historically been used in textile finishing. It can help fabrics resist wrinkles and mildew during storage and can help them retain their shape.
The amount present in finished textiles is generally not considered acutely harmful to most adults. However, people with sensitive skin, eczema or other skin conditions can sometimes be more reactive to chemical residues in fabrics.
For those people, sleeping on unwashed sheets containing residual finishing agents could potentially contribute to irritation, redness or itching.
Even if you don’t have sensitive skin, washing new sheets before using them means you’re removing those finishing residues before spending the night against the fabric. There’s also a noticeable difference in how many sheets feel after their first wash. They often become softer and feel more natural compared with how they felt straight out of the packaging.
Dye Can Transfer Too
Dark and brightly coloured sheets can sometimes contain excess dye that hasn’t fully bonded with the fabric.
Colours such as deep blue, red, dark green and black are more likely to make this noticeable. During the first few washes, some of that loose dye can come out of the material and transfer onto other fabrics or surfaces.
If you’ve ever slept on a brand-new dark sheet and noticed a faint colour on your skin or pyjamas the next morning, loose dye may be the reason.
Washing the sheet before using it means that excess dye is removed in the washing machine rather than potentially transferring while you’re sleeping. It also gives you an early indication of how much the colour is likely to bleed, which can help you decide how to wash the sheets in the future.
How to Wash New Bed Sheets Before First Use
It doesn’t have to be complicated. For new cotton sheets, a warm wash at around 40°C with a small amount of liquid detergent is generally sufficient. You don’t need to overload the wash with detergent because the main purpose of the first wash is to remove manufacturing residues and loose dye rather than tackle visible dirt.
Some people also add white vinegar during the first wash. While vinegar is sometimes used as a household laundry aid, you should follow the sheet manufacturer’s care instructions and avoid mixing vinegar with bleach or other incompatible cleaning products.
If you’re washing a dark or strongly coloured sheet for the first time, it’s sensible to wash it separately, particularly if you’re worried about colour transfer. Alternatively, wash it with other similarly coloured items.
Once the wash is finished, dry the sheets completely before putting them on the bed. If you’re drying them outdoors, sunlight can be useful, although proper washing and thorough drying are the important steps.
If you’re drying them indoors, make sure they’re completely dry before putting them on the mattress. Putting damp fabric onto a bed can create an environment where unpleasant smells and mould become much more likely.
The Softness Benefit Alone Makes It Worth Doing
Even if you put the hygiene and chemical considerations aside, there’s another good reason to wash new cotton sheets before using them: they usually feel better afterwards.
New cotton sheets can feel relatively stiff because of the finishing process and because they’ve been tightly folded and packaged. A single wash can noticeably soften the material.
Pure cotton is particularly pleasant after that initial wash. The fibres relax, some of the finishing treatment is removed, and the fabric begins to develop the softer, more comfortable feel associated with regularly used sheets. Skipping that first wash means you may spend your first few nights sleeping on fabric that’s stiffer than it needs to be.
What Happens If You Don’t Wash Them?
For most people, probably nothing dramatic. You put the sheets on the bed, sleep on them, notice that they feel a little stiff or perhaps have a slight chemical smell, and then gradually notice the difference as they’re washed and used over the following weeks.
For someone with sensitive skin or a skin condition, however, there may be a greater chance of irritation. It can also take a while to realise that the new bedding is responsible.
The argument for washing new sheets isn’t necessarily that using them straight out of the package is dangerous. It’s simply that washing them is easy, and there are several sensible reasons to do it.
One wash can remove manufacturing residues, loose dye and some of the dust accumulated during storage and handling, while also making the sheets softer and more comfortable. For pure cotton bed sheets designed to be washed and enjoyed for years, visit www.belongindia.com.