The technical term for informal, conversational speech is a0 speech.

Colloquial

Explanation:

Colloquial language refers to the use of informal, conversational words and phrases. This term is particularly applied to pieces of writing that employ this type of language. Colloquial expressions can also include slang, as they represent speech as it is spoken by people in their daily lives. Although some writers use colloquial speech on purpose, some others do so indadvertedly influenced by the way they speak in their own society.

i love to sleep it's the best

imparadis't in one anothers arms  

the happier eden, shall enjoy their fill  

of bliss on bliss, while i to hell am thrust,  

where neither joy nor love, but fierce desire,  

among our other torments not the least,  

still unfulfill'd with pain of longing pines;  

yet let me not forget what i have gain'd  

from their own mouths; all is not theirs it seems:  

one fatal tree there stands of knowledge call'd,  

forbidden them to taste: knowledge forbidd'n?  

suspicious, reasonless. why should their lord  

envie them that? can it be sin to know,