No, sleep mode shuts down most all hardware components (CPU, graphics card, NIC (network card), VDU) to preserve as much power as possible without losing your current computer session by keeping the ram turned on. In turn, the driver that powers your network card is off, the CPU that processes the data is off, and the hard drive that it saves to is off.
No you cannot, while in sleep mode it shuts down your networking therefore not allowing you to download however you can turn off your monitor while this process is going on to keep it from going into sleep mode.
No. Sleep mode is a low power standby mode. No processes are taking place while in sleep mode.
sleep mode.
for sure
You wake it up:)
Yes of course :)
when the system is on sleep, it pauses the download. because the sleep mode is for saving resources like power. so all the stuff goes to suspend mode. the system must be in running mode for downloading. For laptop you can change the setting which says that do not put laptop on sleep when lid is closed.
70%
No, it will not.
I would not recommend it. I have read about it being bad for your laptop to be on sleep mode all of the time, especially if you carry it with you while it is on sleep mode. Also, your laptop will get slower after a while. I think the traveling with your laptop in sleep mode is less of a problem if you have a Solid State Drive (SSD). Never the less, I would recommend at least once a week turning your computer off entirely for a few hours.
Sleep Mode ≤ 4 watts on a personal computer and ≤ 2 watts with regards to a laptop
All batteries will drain a small amount, even if they are not being used. However, a substantial battery drain would be due to a problem with the battery or laptop. Make sure that the laptop is indeed off, though. With Vista, clicking the power button in the start menu will not shut down the laptop, but will instead put it into sleep mode. This continues to drain the battery. Some of the lights on the computer will still be lit when the laptop is in sleep mode, while no lights will be on if the laptop is turned off.