Sleeper for Windows

Overview of the Sleeper Utility

Sleeper is a Windows-based utility that helps verify a PC’s ability to enter and exit low-power modes. It provides tools to initiate a variety of sleep states and full hibernation, check whether the system wakes reliably, and run repeatable tests to validate power-management behavior.

Primary Functions and Tools

• Cycles through every available sleep or hibernation state to exercise power transitions.
• Forces the system into a selected sleep state (S1, S2, S3) or full hibernation (S4) on demand.
• Displays which power states the machine supports so you can quickly confirm compatibility.
• Schedules a timed wake event so a system will resume after a set interval.
• Offers command-line controls to script and automate test sequences.

Automation and Integration

Sleeper can be invoked from scripts or batch files, enabling unattended test routines. It integrates with PassMark BurnInTest scripting, allowing you to run power-state checks between stress-test sessions and capture results as part of a broader validation workflow.

Who Benefits from This Tool

• IT departments and system integrators who need to validate power management across multiple machines.
• End users who want to confirm their PC reliably enters sleep or hibernation and resumes as expected.
• QA engineers requiring repeatable, automated sleep/hibernate cycles for troubleshooting or regression testing.

Recommended Alternative

k6 Studio (Free) — a capable alternative for users seeking another free option for automated testing and monitoring.