Valmiki Ramayana Ayodhya Kanda Sarga 46 Shloka 13

सूतः charioteer, शिवाम् auspicious, सन्ध्याम् Sandhya, उपास्य having worshipped, रात्रिम् night, उपस्थिताम् having arrived, दृष्ट्वा having seen, सौमित्रिणा सह along with Lakshmana, रामस्य of Rama, शयनम् bed, चक्रे made.

Then the charioteer worshipping the auspicious Sandhya (twilight), and seeing the night approach made bed for Rama and Lakshmana.