In my experience working with computers and serving in tech support for the past 15 years, one saying I have used over the years is, “When all else fails, reboot!”  With the advent of tablet computers, smart phones, Macbook Pro, and now Windows 8, people tend to think using “sleep mode” or “hibernate” is a good option since it comes back to life so much quicker than booting up.  The fact is, we waste more time and have many problems to troubleshoot due to the device’s inability to come out of sleep mode and , more importantly, the over use RAM memory that causes the performance to drop significantly.  It makes no difference if you use an iPhone, Android, Windows device, or Mac / Linux.  The best thing you can do to maintain the performance of your computing device is to reboot it regularly.  I reboot my tablet, phone and computer once every day.  You don’t have to be as fanatical as I but, it would be wise to reboot at least once a week.  It will save a lot of headaches and might very well prolong the usefulness of your expensive device, since many people think the lagging performance is a symptom of aging hardware.  If you would like a more technical answer as to why a reboot is important, feel free to ask, I would be happy to explain.