the.com/comforter

A bag of fluff that wins every staring contest with your alarm clock.

means A comforter is a thick, fluffy quilted bedcover stuffed with down or synthetic filling, designed to keep you warm and unwilling to leave bed.

from From the verb "comfort," which came through Old French "conforter" from Late Latin "confortare," meaning "to strengthen greatly" — built from Latin "com-" (an intensifier) plus "fortis" (strong), the same root that gives us "fort" and "fortify." So a comforter was literally a thing that strengthens or consoles you; the word had long meant a soothing person or item before it settled, by the 19th century, onto the warm bed-quilt we burrow under today.

fill power
Down loft is measured in cubic inches per ounce
original word
Middle English meant a person, not a blanket
warmth trick
Trapped air, not fabric, does the actual insulating
weight class
Weighted versions can top 25 pounds
name swap
Brits call the same thing a duvet
for instance

down comforter — bedding filled with duck or goose down, standard in hotels and homes worldwide since the 1800s

weighted comforter — blanket filled with glass beads or plastic pellets (typically 15-30 lbs), marketed for anxiety relief starting in 2010s

cooling comforter — gel-infused or moisture-wicking duvet like ooler or chilisleep, designed to regulate body temperature during sleep

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