When in doubt, open > Network tab. If the data rate drops to zero shortly after your Mac sleeps, you have your answer.
If you’re downloading a large file, either disable sleep temporarily or use a keep-awake tool. For App Store updates on a modern Mac, you’re in luck—Power Nap has you covered. do downloads continue in sleep mode mac
The short answer is generally . Under standard settings, when a Mac enters "Sleep Mode," the computer cuts power to the hard drive and the network interface to conserve battery. However, the technical reality involves a feature called "Power Nap," which allows for exceptions. Understanding the distinction between these modes is essential for managing large downloads effectively. When in doubt, open > Network tab