睡眠 すいみんポリグラフじゃありませんでした
suimimporigurafujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 睡眠ポリグラフ

1. Was not a sleep polygraph.; Wasn't a sleep study.

Past/Perfective
Negative
Polite
Terminal Form
Medicine