Infact
91 / 100
True

Sign language speakers have been known to sign in their sleep.

Infact verdict: True (91/100).

The claim that sign language speakers have been known to sign in their sleep is supported by multiple sources. Evidence from educational and factual websites indicates that deaf individuals can indeed sign during sleep, similar to how hearing people might talk in their sleep. This phenomenon is documented in cases such as a 71-year-old man who signed fluently during REM sleep. The evidence is consistent and comes from reliable sources, supporting the claim's validity.

September 01, 2026 Language: en 1 claim analyzed
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Individual claims

91
True Other
Sign language speakers have been known to sign in their sleep.
Multiple sources confirm that deaf individuals can sign in their sleep, similar to sleep-talking in hearing individuals. This is supported by documented cases and is considered a well-integrated cognitive process for those who use sign language.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 90
Web Consensus Weight 40
Source Quality Score 85
Source Quality Weight 20
Llm Reasoning Score 80
Llm Reasoning Weight 40
Llm Reasoning Score Raw 80
Weighted Total 91
Evidence Summary 3 web sources confirm the claim.

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