Getting out of sleep is much faster than starting from a shutdown and can even seem instantaneous on faster machines. However, sleep requires more power on all desktops and laptops. During sleep mode, machines will only retain everything in memory as long as the power supply is constant. There are two main differences between sleeping and turning off.
When you want your PC to go out of sleep, it will start up faster; it only takes a few seconds to get back to your desktop. Since all your work is saved in RAM, you can start right where you left off. Unless you constantly turn your PC on and off like a toy, the wear and tear of a daily shutdown is minimal and will not cause noticeable damage. When you decide to close, individual programs will usually ask you to save your files before you lose them.
Although rare, random power spikes and surges can damage your computer when it is turned on or in sleep mode. But what is sleep mode? Sleep is a power-saving mode that stores all open files, software, and other data in the computer's main memory or RAM. Or, unless you're forced to do it when you run into a BSOD (Blue Screen of Death) error in that case, it's best to hold down the power button for a few seconds to shut down your PC. Just close your laptop and put it into sleep mode, which is usually the easiest thing to do.
Unless you schedule these tasks to occur during the day, shutting down your computer may interfere with these necessary programs, which may make your computer more susceptible to malware. With a shutdown, those things are reset, which is essential, since programs that are constantly running tend to slow down the PC over time. An idle PC uses enough energy to keep its memory active and comes back to life almost instantly, making it ideal for when you don't use your PC in the short term. Others say that putting a computer to sleep is a waste of electricity, especially if left unused for an extended period of time.
Download AVG TuneUp for PC to put programs to sleep in the background for more memory and better performance. The easiest way to fix these performance issues, besides closing non-essential programs manually, is to simply shut down or restart your computer. It's a very “Apple” approach so you don't think about multiple power options, whether you turn off your Mac or put it to sleep. It's the fastest and most practical power-saving option that most laptops today automatically switch to sleep mode as soon as the lid is closed.
The RAM continues to “wake up” and draws power from the battery or power outlet, while the rest of the computer shuts down (the processor, hard drive, connected drives, etc.