I was rolling around in my bed trying to sleep. i opened my window to let in some fresh air when i noticed a bright sphere in the sky. first i thought it was a airplane but the sole airport was in the opposite direction and there we no sounds associated with planes or helicopters. i grabbed my glasses off my study table to make sure of what the object was, when i glanced at it for a second time it started accelerating upwards at breakneck speed. it accelerated for 5 or so seconds before disappearing out of sight completely. i was in complete awe of what i had witnessed and checked the sky again for aircraft, then concluding that no aircraft were present except the mysterious object, i had guessed it to be an ufo. i lost sight of it when it was speeding upwards and the sight was blocked by my rain blocker at the top of my window. i re-positioned myself to get a better angle but it was gone by then.