| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | insomnia | United Kingdom | Insomnia is a common sleep disorder often treated with medication and therapy. | 1 |
| 2 | lack of sleep | United Kingdom | Lack of sleep is often seen as a badge of honor, indicating hard work and dedication to one's job or studies. | 1 |
| 3 | sleep schedule | United Kingdom | Typically follows a 9-to-5 work schedule with early morning wake-up times | 1 |
| 4 | sleep training | United Kingdom | Common practice to teach infants to sleep independently from an early age | 1 |