# Epoching Data with no Events in mne?

I am new to Python and signal processsing, and I'm trying to create a spectrogram of EEG data taken during a course of general anesthesia. I would like to use MNE's tfr_multitaper function in order to compute the power and power.plot() to view the spectrogram.

Before I can do this, however, it seems I need to epoch the raw data. My problem is that I have only seen raw data epoched in MNE using events, and when I try to find events using mne.findevents on the pre-processed data (e.g. filtered and resampled) it fails to find any. I am wondering if there is a 'split' function in MNE like in brainstorm that allows aritficial epoch production without events.