Strong's Definition
from 3527 in the original sense of plaiting; a matrass (of intertwined materials)
KJV Usage: pillow
STEPBible — Tyndale Abridged Hebrew Lexicon
כָּבִיר (ke.vir) — quilt. (something) netted, a quilt, fly net, pillow
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
[כָּבִיר] n.[m.] prob. something netted, i.e. either a quilt or a fly-net spread over the face while a person was asleep base