The 19^th century saw the invention of the cotton gin. This machine quickly and easily separates cotton fibres from their seeds which revolutionised cotton production. Thus, the cotton sheet was born. This was the start of a new industry. It became much easier to produce cotton than flax and that in turn made it a cheaper product. Ultimately cotton became the popular choice for bedding, though the name bed linen stuck.

Bedsheets should be washed about once a week,^[6] using low-temperature water and drying settings.^[6] Warm water can be used to eliminate coffee stains, urine or allergens, such as dust mites.^[6] Using fabric softeners is not recommended, as they leave behind residue that decreases the fabric's breathability.