My best friend just had her lo June 16. All Kiera wants to do is sleep! (Yeah, my poor friend!!!

They have even put ice cubes on her to wake her and she doesn't!!!!

Anyway, her lactation consultant gets angry with her saying that she should be waking her every 3hours to feed. My friend might wake her after 5 hours at night to feed her and she falls back to sleep in no time. She doesn't want to wake if sleeping. Now Kiera is gaining weight, so I said that shouldn't be a problem not waking her to feed every 3 hours. During the day Kiera will stay awake about 1-1.5 hours after a feed playing, so she's not lethargic.
Any thoughts?