Neom Reed Diffuser Perfect Night’s Sleep Refill is perfect for Neom Reed Diffuser fans. Simply top up the original Reed Diffuser Bottle with the Refill. The scent is the result of two years research expertly twisting together hundreds of oils to find a blend that would help induce the perfect night’s sleep. Lavender has been proven in countless studies to calm and relax the mind and body when inhaled. In Neom’s trials the vast majority of people had a better night’s sleep after using this scent.