The great thing about the Cause and Effect chart is that it works with your Sleep Journal. This means that when you customize the chart, there are a number of different options to choose from so you can really zero in on what is affecting your sleep.

For example, if you wanted to see how your Time in Deep was affected by your Level of Activity, just select Time in Deep from the left-hand drop down and Level of Activity from the right.

Many people will use excessive amounts of caffeine in the morning and then, as that beings to wear off in the middle of the afternoon, they start to crash and come down off of the stimulant, and might be sleepier than they would be otherwise. This crash often leads to more caffeine - which may lead to worsen sleep at night and people get into a vicious cycle.

Most people who wake up from Deep Sleep, and then go back to sleep, do not remember waking up at all. For a period of several minutes after waking up from Deep Sleep, we experience sleep inertia, characterized by lowered cognitive abilities and a reduction in the ability to make memories. This same effect is why people feel more groggy when they wake up from Deep sleep as opposed to REM sleep.

A serving of caffeine is 50mg; what that looks like once you get it into the cup can be a little tricky.  Below are general caffeine levels across common foods, beverages, and medications to help determine daily caffeine consumption.

Insomnia, simply put,  is a complaint of a difficulty falling asleep, staying asleep, or non-restorative sleep that has daytime consequences.

In the medical community, insomnia disorders are divided into those that don't seem to be associated with other medical, psychiatric or other sleep problems - that's called "primary insomnia" - from insomnia that's accompanied by a medical problem, a psychiatric problems, or other sleep problem and we call that "co-morbid insomnia".