CC Antya 19.57

premāveśe mahāprabhura gara-gara mana
nāma-saṅkīrtana kari’ karena jāgaraṇa
Word for word: 
prema-āveśe — in greatly ecstatic emotion; mahāprabhura — of Śrī Caitanya Mahāprabhu; gara-gara mana — the mind was fully overwhelmed; nāma-saṅkīrtana kari’ — chanting the Hare Kṛṣṇa mantra; karena — does; jāgaraṇa — wakefulness.
Translation: 
Śrī Caitanya Mahāprabhu stayed awake all night, chanting the Hare Kṛṣṇa mahā-mantra, His mind overwhelmed by spiritual ecstasy.