Easy find back after sleep mode
Before resuming the podcast, which timed out through sleep mode, ask if and how much you want to rewind.
Feature could look like this
https://pbs.twimg.com/media/EbXXYrDXgAIRa8y?format=jpg&name=medium (hope Link is consistent)
Picture is out of the Bookbeat app. It has a slider between start timestamp where you activated sleepmode and stopmarker where sleepmode ended. The audio is playing during the slide of the user.
Right now Rewinding is tedious, either you have very small steps and have to hammer the rewind button quite much, or if you try to use the slider it is quite fuzzy and difficult to hit the right place, if the podcast is very long.