The test presented here is the Glasgow Content of Thoughts Inventory (GCTI), developed by Harvey and Espie in 2004 and compiled from real audio recordings of the thoughts of people with insomnia. It consists of 25 items describing thoughts that commonly keep people awake at bedtime, for which you rate how often each one has occurred over the past week.
Unlike scales that focus purely on sleep timing or daytime consequences, the GCTI looks at what actually goes on in your mind before you fall asleep — worry, planning, rumination, bodily awareness, and intrusive thoughts. It takes about 5–10 minutes to complete. Higher scores indicate more frequent and intrusive pre-sleep cognitive activity, which is associated with a longer time to fall asleep. The result is not a medical diagnosis and does not replace consultation with a specialist.
Insomnia, anxiety, and depression are often intertwined in practice and can reinforce one another. If you are more concerned about anxiety, tension, or worry in general, our anxiety test may help. If you are more concerned about low mood, loss of interest, or lack of energy, our depression test may help.