| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | insomnia | United States | Treated as a serious medical condition, often addressed with medication or therapy | 1 |
| 2 | insomnia | United States | Insomnia is a common sleep disorder often treated with medication and therapy. | 1 |
| 3 | sleep schedule | United States | Typically follows a 9-to-5 work schedule with early morning wake-up times | 1 |
| 4 | sleep training | United States | Common practice to teach infants to sleep independently from an early age | 1 |
| 5 | sleeping arrangements | United States | Children often have their own rooms | 1 |
| 6 | sleeping habits | US | It is common to sleep with a top sheet and a comforter in cold weather. | 1 |