yeah i get it too... Its like what i call 'shallow sleep.' i was in a dance class and we did relaxation, i fell asleep for a few seconds and it wasnt proper sleep sleep, but my consious mind was shutting down. I started to see colours and all i rememberd was a really quick image of a bannana!!! random or what!!! then i woke up. Isort of knew that it was a dream, but i was too consious to stay in the dream i think. I reckon the only way to stay in a dream as shallow as this is to really practise your focus. Become focused on the fact that you are not awake, but do this slowly, or will come as a shock and you willl wake up... just an idea, i really dont know that this will work hope i helped tho!
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