Modern MacBooks generally don’t suffer from battery life woes, but when you encounter an unexpectedly high drain, it can be tough to diagnose the problem. Sleep Aid is a Mac App This helps you figure out why your Mac’s battery is draining, and it’s ready to drain idle battery. That is, when you put your MacBook in sleep mode, it shouldn’t lose a significant amount of charge. If you lose more than a few percentage points of battery life when you leave the Mac’s lid closed overnight, Sleep Aid can detect the problem.
The utility displays a graph that marks the various wake events on your MacBook and labels these events for you. That way, you can tell if your MacBook woke up because of some dust on the trackpad, a rogue app, or interaction with Bluetooth accessories. Its graphs label potential issues in orange or red colors, making it easy to figure out when your Mac’s battery died and what caused it. For added battery support, the app automatically disables certain system services when your MacBook is in sleep mode and resumes these processes when your Mac wakes up.
Sleep Aid also allows you to control various system settings related to sleep. You can use the app to automatically disable Bluetooth, Wi-Fi, and other network connections when your Mac is in sleep mode. These settings prevent your Mac from waking up in situations where you accidentally pressed a key on a Bluetooth keyboard or moved your mouse while your Mac was sleeping. Similarly, some apps may wake the Mac to check for updates, and Sleep Aid may prevent this.
Sleep Aid lets you set various options when your MacBook is connected to power as opposed to running on battery. This is great if you like to charge your MacBook overnight, as the app then allows your Mac to wake up for Time Machine backups and other updates.
Sleep Aid has a free 14-day trial, so you can run some preliminary tests on your Mac without paying. If you find it useful, it costs $25 for a license. While the app is yours forever, you should know that one license only gets you one year of updates. In most cases this shouldn’t be a problem, but if the developers choose to lock support for newer versions of macOS behind an update, you may need to buy a license again to use the app.