Silhouette Arms

About a week ago I had a rather unusual experience - unusual because it hadn't taken place during an astral projection. I had woken up on this particular morning and despite feeling mentally and physically alert something felt out of place. I had an unusual urge to check my arms. Shockingly they were completely black, silhouette arms and so I thought I must be projecting. I flopped my hands about and they felt incredibly light. I pressed my hands against the mattress and - this felt very real. I then reached out for the wall expecting, hoping to go through. After a few seconds the colour of my arms returned. It was like my eyes were somehow adjusting - I realized at that moment that I was physically awake the whole time.