door crushing

I fell asleep at a good time (10ish) then dreamed a very heavy sliding door, sliding from the top like a garage rolladoor but very old and made of stone, was on top of me, making me immobile. I guess it was all a little Indiana Jones or something. Only I hadn't narrowly escaped. Woke up at I think 10:46. The sleep app tells me this is inadequate. It doesn't sleep so it doesn't know anything.