Questions & Answers about Пора бы отдохнуть, но мне ещё нужно ответить на сообщения.
Пора means it’s time (to…). Adding бы makes it softer and more tentative: it would be time / it’s about time / I should probably….
So Пора бы отдохнуть is less blunt than Пора отдохнуть and often implies “ideally, now would be a good time to rest.”
After пора, Russian uses an infinitive to name the action: пора + infinitive.
Отдохнуть is perfective: it means to have a rest / to rest (and finish that rest)—a single complete “rest break,” not the ongoing process.