Related Variables
| slea11 | Typical nightÂ’s sleep in past 4 weeks | Sleep Questionnaire | |
| slea4 | Trouble falling asleep | Sleep Questionnaire | |
| slea5 | Wake up several times at night | Sleep Questionnaire | |
| slea6 | Wake up earlier than you plan | Sleep Questionnaire | |
| slea7 | Trouble getting back to sleep | Sleep Questionnaire |