Supplementary Table 3.

Pittsburgh Sleep Quality Index (PSQI).

Instructions: The following questions were designed to investigated your sleep quality during your hospitalization and self-quarantine period. Please answer all questions. 1. During the past month, what time have you usually gone to bed at night? ________________________________________ 2. During the past month, how long (in minutes) has it usually taken you to fall asleep each night? ______________________ 3. During the past month, what time have you usually gotten up in the morning? ____________________________________ 4. During the past month, how many hours of actual sleep did you get at night? (This may be different than the number of hours you spent in bed.) __________________________________________________________________________________________
	None	Less than once a week	Once or twice a week	Three or more times a week
5. During hospitalization/self-quarantine period, how often have you had trouble sleeping because you…
a. Cannot get to sleep within 30 minutes
b. Wake up in the middle of the night or early morning
c. Have to get up to use the bathroom
d. Cannot breathe comfortably
e. Cough or snore loudly
f. Feel too cold
g. Feel too hot
h. Have bad dreams
i. Have pain
j. Other reason(s), please describe:
6. During hospitalization/self-quarantine period, how often have you taken medicine to help you sleep (prescribed or “over the counter”)?
7. During hospitalization/self-quarantine period, how often have you had trouble staying awake while eating meals?
	No problem at all	Only a very slight problem	Somewhat of a problem	A very big problem
8. During hospitalization/self-quarantine period, how much of a problem has it been for you to keep up enough enthusiasm to get things done?
	Very good	Fairly good	Fairly bad	Very bad
9. During hospitalization/self-quarantine period, how would you rate your sleep quality overall?
	No bed partner or room mate	Partner/room mate in other room	Partner in same room but not same bed	Partner in same bed
10. Do you have a bed partner or roommate?
	None	Less than once a week	Once or twice a week	Three or more times a week
If you have a roommate or bed partner, ask him/her how often in hospitalization/self-quarantine period, you have had:
a. Loud snoring
b. Long pauses between breaths while asleep
c. Legs twitching or jerking while you sleep
d. Episodes of disorientation or confusion during sleep
e. Other restlessness while you sleep, please describe: