This was from a ½ – awake – ½ – dream state, I would guess around 1 am. I looked above my head and saw a huge thick glass sheet that was parallel to the ceiling; it had become dislocated or unattached at the end over my head, yet still was attached near the foot of the bed, so it started coming down like it was on a hinge, and I was worried it would crush me. My first reaction was to put my hand straight up with my palm facing the glass. When I did that, the glass moved back up to the ceiling in-sync with my palm, almost like my hand had Jedi-force. Once it got back up to being flush with the ceiling again, I noticed a row of suction cups which seemed to hold the sheet in place. While it was currently being held up, I sat up and reached with my other hand and pawed at the sconce on the wall above the head of the bed, hoping to find one of those twist-knobs to turn the light on– but to no avail, as it only came on with a wall switch. Within a few more seconds my waking consciousness took over and I realized I was just sitting up in bed with both my arms raised, barely enough light in the room to see anything, looking up at the ceiling which appeared completely normal.