Answered by Ustadha Raidah Shah Idil
Question: What supplication can I recite to get a good night’s sleep?
Answer: Assalamualaykum wa rahmatullahi wa barakatuh,
I pray this finds you well.
There is a narration of Abu Hurayra (Allah be well pleased with him) where the Prophet (Allah bless him and grant him peace) instructed him to recite Ayat Al-Kursi before sleeping. This would prevent the devil from coming close to him, and Allah would protect him throughout the night.
Please read Praiseworthy Acts to Do Before Sleeping to give you more duas to help you sleep.
Checked & Approved by Shaykh Faraz Rabbani