I think it was Arnie that said, 'you grow on your off days'.
I think I make some of my best gains when I can train like a mofo, go home, eat and then have a nap.
Just make sure you eat before you fall asleep.
Perfect!
If you are sleeping that much, you may need it right now.
It it is because you are depressed, then I may try to get out of the house and go for a walk instead.