| TST | Total Sleep Time |
| TIB | Time in Bed |
| FFQ | Food Frequency Questionnaire |
| PSQI | Pittsburgh Sleep Quality Index |
| SOL | Sleep Onset Latency |
| C-FFQ | Caffeine food frequency questionnaire |
| SE | Sleep Efficiency |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.