[QUOTE=plainbriny;4568989]root it and put your images into:
/system/media/SleepImageNook/
ref:
https://www.reddit.com/r/nook/commen...d3u/?context=3
someone's tutorial on rooting GL4+:
https://www.reddit.com/r/ereader/com...in_2025_heres/
Thanks Plainbriny. I was hoping to avoid rooting, but I guess not. Thanks for the links. Setting the cover of the current book as the sleep screen seems like such a no-brainer that I'm surprised ereaders don't already do this!