Remember Hibernate mode? For longtime PC users, Hibernate was a mainstay of the Windows shutdown menu, alongside the Restart, Sleep and Shut Down commands, as a way to save power without losing your work or exiting the operating system entirely.

But in recent years, as Windows 11 has become the most widely used version of the software and most modern laptops use solid-state hard drives, also called SSDs, Hibernate has quietly disappeared from most power-down menus. It’s still in Windows 11 and can be enabled through the Power settings, but it no longer appears by default in the power menu alongside Sleep, Restart and Shut Down.

A recent blog post from the website XDA’s Chandraveer Mathur points to the high amount of wear that Hibernate could put on SSDs as a potential culprit for why the feature is no longer front and center.

“Unlike the spinning platters of older (hard disk drives), which could theoretically tolerate indefinite writes, the NAND flash has a finite service life since every write operation degrades the oxide layer trapping electrons within each cell,” Mathur writes.

While Sleep mode writes your current PC state to RAM and keeps the PC active enough to run updates and other low-power activities, Hibernate writes to a file on the hard drive, creating a more durable save point for extended periods away from the computer. 

Mathur’s theory is that all that hard drive writing on a system that frequently hibernates could cause the SSD to fail sooner. That could be concerning given the high price of SSDs. Replacing a worn-down drive can be a very expensive proposition.

Microsoft responds

“We have no plans to remove support for Hibernate,” a spokesperson for Microsoft told CNET.

The company still sees the mode as useful for long breaks. It uses almost no power, which may be attractive for those looking to keep their energy bill in check.

The trade-off, aside from potential hard drive wear, is that sleep mode allows the system to run background maintenance or apply Windows updates, and it typically resumes more quickly. 

Systems that use sleep, the Microsoft representative said, “have significantly faster resume times and better support for wake functionality, allowing users to get started more quickly.”

Microsoft acknowledged that data writing does affect SSD wear, but says the company has worked to mitigate some of that activity. 

“Hibernate requires writing data to the SSD, which by nature can result in wear over time,” the representative said. “To reduce this, Windows minimizes wear by only saving the portion of memory in use at the time of Hibernate, which is furthermore compressed before writing it to disk.”

Those methods, the spokesperson said, significantly reduce the amount of data being written to the SSD for typical workloads. These combine to result in a significant reduction in data written to disk for typical workloads.

For most, it won’t be an issue. 

“Windows prioritizes Sleep as the default experience, but Hibernate remains an option for those that choose it,” the spokesperson said.