How should you choose a pure-cotton four-piece bedding set?

　　We spend roughly one-third of our lives in bed, making sleep quality all the more important. A major factor influencing sleep quality is the bedding set we use most often—yet there’s a wide variety to choose from. If you want to invest in bedding that promotes both physical and mental well-being, it pays to do a bit of research. With that in mind, we’ve put together this guide on how to select high-quality bedding, hoping it will be helpful to you.

　　 Many people opt for pure-cotton duvet covers—so how should you choose one? And how can you tell whether a duvet cover sold by a retailer is actually made of pure cotton?

　　Buying Tip 1: Touch with Your Hands

　　If the duvet cover is washed with glue, it will feel rather stiff; when you run your hand over it, you’ll notice some resistance, and your palm seems to absorb a bit of moisture. It probably has a high cotton content. On the other hand, if it feels very smooth and slippery, it’s not pure cotton—it likely contains synthetic fibers blended in.

　　Buying Tip 2: Visual Inspection

　　When viewed under bright light, the fabric surface reveals that its fibers are fine, short, evenly distributed, and contain few long, highly curved fibers, with a high cotton content. Conversely, fabrics with a large proportion of synthetic fibers exhibit the opposite characteristics. What we commonly refer to as “lint” is actually formed when long fibers, through prolonged friction, wrap around and entangle the shorter fibers.

　　Buying Tip 3: Smell with Your Nose

　　Fabric odor: Due to differences in printing and dyeing processes, fabrics with a high synthetic-fiber content can accumulate large amounts of dye, resulting in a strong industrial smell in quilt covers made from such materials. Quilt fabrics with a high cotton content are generally more complex and do not feature intricate printed patterns, so their industrial odor is relatively mild.

　　Buying Tip 4: Compare Prices

　　For fabrics of the same area, those with a higher cotton content tend to be slightly heavier and thicker, and they also command a relatively higher price.

　　In addition, it is preferable to use reactive printing for bed linen sets. Compared with pigment printing, reactive printing involves the formation of covalent bonds between the reactive groups in the dye and the fiber molecules during the dyeing and printing processes, effectively integrating the dye with the fabric. This results in excellent dust-repellent properties, high cleanliness, and superior color fastness. Of course, the cost is considerably higher than that of pigment printing. In reactive printing, dyes are used as reactive dyes, typically formulated with high-viscosity sodium alginate as a paste-like medium, which minimizes degradation and penetration, thereby better preserving the pattern. Most applications employ M-type reactive dyes with dual reactive groups; reactive printing offers numerous advantages over pigment printing, such as superior breathability, enhanced color and wash fastness, and a soft hand feel—qualities that traditional dyeing techniques, which often result in fading, simply cannot match in bed linen sets.