10, 11, and 12: Temperatures

10. Create a comfortable environment. Whether that means picking the perfect mattress, splurging on 800-thread-count sheets, getting heavy-duty curtains to block out light, or keeping a fan in the room for background noise, make sure it’s comfybefore climbing into bed. Share a bed? Work with your partner to make any changes necessary so everyone sleeps well.

11. Keep the bedroom slightly cool. Between 60 and 75 degrees Fahrenheit is ideal. A room with extreme temperatures leads to more frequent awakenings and lighter sleep.

12. Take a hot shower or bath before bed. This can help the mind relax, while the rise and fall of body temperature induces sleepiness.