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Don't Sleep vs NoSleep: catalog facts
Don't Sleep	NoSleep
Free Freeware from SoftwareOK.	Free Free and released into the public domain under the Unlicense.
Windows	Windows
Offers portable and installable packages Supports both 32-bit and 64-bit Windows	Very small and focused on one task Works where power settings are locked by policy
Windows only	Windows only Few options beyond keeping the machine awake
Downloadable app	Downloadable app
Closed source	Open source
License: Freeware	License: Unlicense
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.