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Definition of sleepsack

sleepsack

/ˈsliːpˌsæk/
sleep · sack
Plural:sleepsacks
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sleepsack Lexical Profile

• noun

1

A wearable, bag-like garment that fastens around an infant's shoulders and encloses the legs and feet, used in place of loose crib blankets.

Example

"The pediatrician recommended zipping the baby into a cotton sleepsack to keep her warm and safe throughout the night."

2

A lightweight sleeping bag or washable fabric liner used for camping or traveling.

Example

"The backpacker packed a compact silk sleepsack to use inside youth hostels during his trip."

Synonyms
View all synonyms for sleepsack

• Nearby Words

sleeplike
sleepout
sleepover
sleepsack
sleepshirt
sleepsuit
sleepwalk

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Sleepsack. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/sleepsack
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