SmartSleep AlternativesPrevent Sleep Mode Apps like SmartSleep

Amphetamine is a little app that lives in your menu bar which can effortlessly override your energy saver settings and keep your Mac awake.

Caffeine is a tiny program that puts an icon in the right side of your menu bar. Click it to prevent your Mac from automatically going to sleep, dimming the screen or starting screen savers.

This is a simple app that prevents the desktop environment (DE) from sleeping while its on. It should work regardless of the used DE thanks to the Inhibit portal.

Energy-efficient Mac utility: sleep or screensaver activation at your fingertips.

Use Mac with external monitors with lid closed even when you are on battery power. Play music, airplay movies, download/upload lid closed. Most modern and up to date app.

Annoyed by the display getting dim when you're reading or watching something? What if the computer could “see and hear” you?

Keeps your Mac awake.

Coffee allows you to keep the display awake without having to change the device settings. It can be toggled at various places:

It always has been a missing feature: disabling the sleep mode on a Apple Laptop. Who does not want to use it as a big juke-box or go warwalking. The best looking server ever, especially at about one inch height.

View a Mac's sleeping habits, solve issues, improve battery life, stop sniffers.

Prevent your Mac from falling asleep, dimming your screen or starting the screensaver. Theine keeps macOS awake just like caffeine does with you.

SafeSleepOnce puts your Mac into safe sleep once and automatically enables normal sleep afterwards.