> [!info] BgWriterHibernate > <table><tr><td rowspan="4" width="25%"><img src="assets/wl_activity_bgwriterhibernate.png"></td><td><b>Wait Category</b></td><td>Activity</td></tr><tr><td><b>Mechanism</b></td><td><code>BackgroundWriterMain</code></td></tr><tr><td><b>Operations</b></td><td><a href="Operations/Table/SeqScan">SeqScan</a></td></tr><tr><td><b>Resources</b></td><td><a href="Resources/CPU">CPU</a></td></tr><tr><td colspan="3"><b>Background Writer Hibernation</b>. The background writer enters a deep power-saving sleep when there are no dirty pages in memory to sweep and write to disk. (Analogized by a sleepy sloth in a nightcap sleeping in a drawer next to clean stacked plates).</td></tr></table>