My DS cluster fed from 11pm - 5am every night from 3 days old until 14 days old when i finally gave in and gave up :( Put him on bottles in the end it just was killing me.
No-one I asked (and believe me, I asked everyone! MW, HV, NCT BFing consultant) could tell me why he was doing this and when/if it would end. People kept saying, oh that's unusual, babies usually clusterfeed in the evenings, not at night.
He wasn't just feeding every hour in the night like I believe newborn babies can. He would literally do 30 mins left boob, 10 minute break, 40 mins right boob, 12 minute break, 45 mins left boob, 5 min break, 30 mins right boob.....etc etc etc. ALL FECKING NIGHT!!!
He had a good latch but my nips were in shreds due to the constant feeding all night. And I was hallucinating like a guatanamo bay inmate after 16 nights with no sleep at all.
Sorry not a helpful post!