Dealing with insomnia can be tough, but knowing how sleep works can help. People with insomnia try hard to fix their sleep, spending a lot of time and effort. Sleep has different stages: awake, very light sleep, light sleep, deep sleep, and REM sleep. The deepest sleep, which helps your body the most, usually happens early in the night. When you sleep, you go through these stages several times and might wake up briefly without even remembering it in the morning. Sometimes, people with insomnia t