How to use this Sleep Tracking Log Book: 8 X 10 Inches 110 Pages This useful sleep tracking log book is a must-have for anyone that needs to record sleeping and waking times! You will love this easy to use journal to track and record all your sleep activities. Each interior page includes space to record & track the following: Date - Write down the date the start date of the sleep study. Week - Use this space to fill in the week of starting your sleep information. Sleep Cycle/Quality - Record by circling the time, interval, rating and quality of the sleep. Behavior - Fill in the water level, food, coffee, and any other sports done for that week. If you are new to the world of tracking your sleep or have been at it for a while, this sleep diary log book is a must have! Can make a great useful gift for anyone that needs a good night's sleep! Have Fun!