The first time I experienced them, I woke up in the middle of the night and rolled onto my side to check on my 5 year old (who slept in bed with me). There on his chest I saw 3 dots of red lights in a triangle formation. I was confused and thinking WTF, so I put my hand above his chest, over the spot where the dots were and they appeared on my hand. So I look around the room, looking for a source, some reflection somewhere but could find nothing. The windows were closed, the blinds were closed, the curtains were closed, so no way for it to be from an outside source (car driving by etc). The only red light in my room was my alarm clock, which was across the room on a dresser, about 10+ feet away.
So I look up towards the ceiling and there I see the source, a red light on the bed canopy, similar to this. So basically, it was like something was shining a laser pointer down on my son from the canopy right above us. I stood up on the bed to get a closer look and it then vanished. I had a few more experiences with that damn red light, which the source always seemed to appear on something dark/black.
I remember waking up one time and seeing it on my sheer drapes (also black), getting out of bed and trying to grab it. I literally felt like a cat chasing a laser pointer on the wall, because it would always move right before I could grab it. Then it would disappear. I don't know how to classify my experience, can't really call that paranormal, as I don't think ghosts/spirits can appear or summon a red laser light. But who knows, back of my mind wants to think aliens or some sort of interdimensional being, maybe using those lights to spy on people. Sounds crazy, I know, but I know what I saw and have seen it multiple times.