Hoovering, completely silent sphere with red lights everywhere on its round body. 5-7meters wide&tall (ball)

I am today 30 years old, and this happened when i was 5 years of age.
at about 3:30 in the morning (night) i remembered that me and my mother woke up from sleepeing because of a VERY bright red light coming in to my mothers bedroom (i was sleppeing beside her that night). My mother thaught it was the stop light (breaklight) of a car, but we lived on the 5th floor so that was not the case, anyway i was scared (5 years of age) and went under the blanket. My mother told me what happened then, This big sphere or ball if you like was about 5-6 meters wide and tall (ball) and had a constant red bright light scanning our bedroom and us (that was my mothers feeling)it was only outside our window?!. After about 5-7 minutes it took off all the time soundless! completely silent, and it flew away and my mother saw it all the way until it was gone.
Im not sure what that was but ill tell you... After that, i do believe more that it is somethings out there. (or the goverments testing new equipement???????) Hope my information was interesting for you. and i guarrantie: This happened for real i have no intentions of lying. And NOT my mother, shes not the lying type!
Date may be approximate.  PD