Unwanted processes

I bought a Sony Xperia SP phone 3 days ago. Nice, fast, everything is seems to be all right, except for 2 things: Last night, I killed all the tasks, set the stamina mode, and charged it to 100%. I went to sleep at 23:00, my alarm woke me up at 7:30 (GMT+1 where I am). I checked my phone, and WTF? Battery is on 86%. No wifi, nfc, gps, bluetooth, anything was turned on, and as I mentioned, it was in stamina mode. I checked the task list, and there were a lot of tasks, that I did not start, I don't touch my phone while I sleep (obviously). I made a check again today. Killed all of the tasks except: - Advanced - Task Manager - Lookout - Clean Master - Messenger / Facebook. (I do not know why I did not kill this, because I am using stamina mode, but never mind). After I killed all of the tasks except those mentioned above, went to home screen, back to task manager, and guess what: Now running - YouTube - Google Play Newsstand (hungarian lang) - Google+ - Facebook - Google Play services - Chrome - Google search - FourSquare - McAfee Security - Intelligent Link - HRS Hotels etc... Why is it happening? (Who the fffffff asked to start HRS Hotels for example?) Ok, if Google search has reloaded itself, I say, ok, or some Google apps, but the others? How can I stop these apps starting automatically? The problem is, I check what uses the most of the battery power, and it says: Google Services 22%, Map, 19%. I checked Google services and here are the list of packages (I tried to translate from Hungarian): - Account manager - Google Play framework - Google Play services - Network location - Bookmark synch - Google contact sync Ok, I did enable these services, but this whole thing is strange for me. Please help me to improve to use my battery for longer use. Thx