what are hotel towels made of

Crafted from synthetic fibers that mimic the softness and insulation properties of goose or duck down, these inserts provide a cloud-like sleeping experience without compromising on warmth. The fill power, a measure of the fluffiness and insulation ability, is meticulously designed to mirror that of high-quality natural down. This means that even on the coldest of nights, sleepers are enveloped in a cocoon of warmth, making the transition from wakefulness to slumber a seamless one.

...
...

However, the one aspect of fit you may want to consider is pocket depth. Fitted sheets can vary in how deep the pockets are, since mattress heights are not standardized like length and width. If your mattress is more than 10 inches tall, you may want to consider looking specifically for deep-pocket fitted sheets. We recommend the pockets be a few inches larger than the height of your bed — if your bed is 15 inches tall, look for 16 to 17 inch pockets.

...