After finding a better way to be bad, this filly got worn out. Pretty much. So here’s Cozy Glow sleeping in the same cage she was in at the end of MLP Season 8. The pillow and blanket are based off the comfort pillow and security blanket from S8E12 Marks for Effort, by the way. Though they’re not exactly the same.
 
Also, from the following part of S9E8 Frenemies, it can be pretty much inferred that she snores:  
Lord Tirek: [scoffs] No, you’re not. You’re annoying, and you snore.  
Cozy Glow: I do not snore!  
Lord Tirek: [mock-snoring]  
Cozy Glow: At least I don’t talk to my Gram-Gram in my sleep.  
because people aren’t usually aware of their own snoring.
 
Cozy Glow, MLP (c) HASBRO