Efficient Sleep and Hibernation Testing Tool

Sleeper is a utility program designed for Windows that tests PC systems' ability to transition into various sleep states and hibernation modes. This tool is particularly useful for users looking to ensure their systems can effectively manage power-saving states. With Sleeper, users can initiate sleep states (S1, S2, S3) and hibernation (S4), verify system responsiveness, and automate testing processes via command line functionalities.

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The program supports a range of features including the ability to wake the computer after a specified duration, force transitions into requested sleep states, and cycle through all available states. Additionally, Sleeper can be integrated with PassMark BurnInTest scripts, allowing for comprehensive testing between runs. The interface displays all supported sleep states, making it a valuable tool for both casual users and IT professionals.

App specs

Also available in other platforms

Program available in other languages


Icon of program: Sleeper

Sleeper for PC

  • Free
  • 4.5
    1
  • 4
  • V2.3.1012

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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Is Sleeper safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
  • Verified by Security Partners

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Scan Info

Last scan
Wednesday, January 7, 2026
Scan provider
VirusTotal · Full report

File Integrity

File
2.3.1012.zip
SHA256
c2ed7ff78cd98373054b077501c82cbfe914852014dc5e07f2f08031b028bb0c
SHA1
4ee84e17ce65ee46e81b1b573cca0d17737bb04e

Softonic security commitment

Sleeper has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center