X1 Box No Longer Stays Off When Put to Sleep

I only watch TV in the evening, so I’ve been putting the X1 box to sleep every night when I’m done. I do it manually via the settings menu, and until recently sleep mode would turn the box off (no blue light). Now when I put it to sleep the blue light goes off, but as soon as I turn off the TV the blue light comes back on. I can put the box to sleep, but turning off the TV seems to wake it back up again. Anyone know what’s up with that?