I just spent almost an hour in SP. Sometimes I would drift away slightly and see things like a glimpse of a row of shiny sportscars but it would disappear very quickly and I'd be able to hear outside noises again. The noise is very faint with my earplugs in but it's still there.

Anyway, towards the end my left arm was so numb it actually started to be quite painful. I realise this can be normal and put it out of my mind. I had previously closed the door to the room. I heard a cat meow so I got up. Turns out I'd locked the cat IN the room, instead of outside.

Anyway, I'm still having loads of trouble getting from SP into a dream. I can't imagine scenes. I try visualising objects spinning, I try visualising tactile scenes like riding a bike. I try more counting. I just feel I'm making no more progress, and just spending longer and longer in SP.