Sleepsack

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A kind of wearable blanket for a baby.
  2. 2
    A device resembling a sleeping bag, often fastened with a zipper, that tightly immobilizes the occupant.

Etymology

From sleep + sack.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.