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All answers having "Comforter" as clue:

4 Character Answers:

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PUFF



5 Character Answers:

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DUVET

EASER

QUILT



6 Character Answers:

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AFGHAN



7 Character Answers:

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BLANKET

CHEERER

SOLACER

SOOTHER



8 Character Answers:

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BEDCOVER

CONDOLER



9 Character Answers:

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BEDSPREAD