Is 2 hours of sleep better than none?

Hello:-) so I just got done with homework (spend 5 hours on it) and I'm just a little sleepy so I don't wanna stay up but will it be harder to wake up? I'm a deep sleeper and most of the times I never hear my alarm on my iphone it just shows a lot of alarms and they say tap to snooze or something (I set a lot of alarms) I've even tried putting in far away but I guess I didn't hear it anyways, 2 hours or none?

Some sleep is better than none. Period.

Always, even laying down and not sleeping is better then standing up.

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