Can you sleep with out realising it ?

[Jotia]

This happens to me quite often, I go to bed at 1am and up at 11am, so it will get to like 7am and I feel like I havnt slept yet and all I have been doing is tossing and turning all night but then it doesn't feel like 6 hours have passed. Surely that would feel really slow? It feels more like 1 hour, is it possible to sleep without realising it? I worried I'm going to end up with severe insomnia and never sleep again, and end up hullinating or dying.

[NancyW]

I believe you can. There are a few different levels of sleep, some deeper than others. I know for me I have that half asleep, half awake sleep and I can remember dreams then.

My husband snores... not long ago it seemed like a few minutes after he laid in bed he started snoring. I nudged him and said shhhh so he'd stop... he said "how could I be snoring, I wans't even asleep yet"

Yes he was asleep, he didn't realise it.