I hope this hasn't been asked a thousand times but searches seem fruitless because of the generic search terms. The situation, I need the phone alive at night for calls and text for work purposes but don't need the email sync beeping me awake at 3 in the morning. The built in battery saver app doesn't work since I charge at night. Airplane mode would shut down all communications. I would also like to change the end times for email sync on weekends. So I'm looking for suggestions, preferably simple and free. I haven't rooted and don't plan to.