I've spent the last few nights like that as well. I don't have and meds for sleep. I live beside a heron rookery, we have tons of different birds here and I cannot get to sleep if I wait till 4 am because the birds are sooooo loud.

I'm trying to pay attention to my sleep because it's spring and I usually get manic about this time. Not sleeping and not feeling tiered is my number one trigger for mania.