Three Taps on My Body

I feel the sensation of three taps on my body this has happened twice. The first time I was about to go to sleep then I feel three taps on my left shoulder but sleep in a hammock and my cousin and brother was on the ground then the second time was today I got into bed and I feel three taps again but on the right side of my back and this time I was in the bed and my brother was sleeping on the hammock facing away from me I’m only 15 years old what does this mean?

Asked by Ezra