>be me
>2 am at home in bed, still cant fall asleep
>'fuck it im gonna try and sleep outside'
>go to an apartment building nearby where there is zero activity at night
>go to the back of said appartment building thats just facing some shrubbery, very quiet
>'people never come here so I should be fine'
>find a spot clear of any insects on the tiles
>lay out a sturdy folded blanket to lay on
>lay there
>...
>any and all sounds alert me immediately and can see my HR spiking on my watch
>cant fall asleep for the life of me, constantly keeping my head on a swivel
>way too alert and sensitive to all sounds, rustling of the wind, distant dog barks etc.
>spider walks infront of me
>freak out, kill it
>soon another spider slowly droops down from the overhang of the building
>freak out, kill it
>cant fucking fall asleep, too fucking alert
>5 am, sun starts coming up
>just go home

Is this why you need a tent? Or am I missing something? To be fair I was just laying there with nothing covering me but it was very nice weather so didn't really need anything. And this was my first ever attempt at sleeping outside.