Sleep Related Questionnaires

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Brief Infant Sleep Questionnaire (BISQ)

Name of questionnaire Brief Infant Sleep Questionnaire (BISQ); BISQ Extended
Type of original questionnaire-description, age/population BISQ: Parent-reported questionnaire on infants/toddler (0-29 months)  sleep over prior one week;
BISQ Extended : Web- based online questionnaire  for children from birth to 36 months over prior  2 weeks
Number of items BISQ 13; BISQ Extended: 25
Number of domains & categories 3 main categories
Name of categories/domains BISQ: Nocturnal sleep duration, night wakings, method of falling asleep
BISQ Extended : addition of sleeping arrangements, bedtime rituals, parental interventions, demographic information
Scaling of items Much of  data in time ( hour and minutes)
Scoring available: with permission or free  Free to use for scientific (non-profit) purpose
Scoring test-retest reliability Yes
Scoring Internal consistency Yes
Validity BISQ : Yes- actigraphy used to validate data; correlated with sleep log and with caregiver report of sleep
Available forms (short and/or long etc.) Yes: BISQ and BISQ Extended
Language English
Translations in other languages (if yes, then list the languages) Chinese, Nepali, Portuguese, Turkish ( Ref 6-9)
Developer(s) name Avi Sadeh, D.Sc
Developer contact information for permission Avi Sadeh, DSc, Director of the Sleep Laboratory Department of Psychology, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.  
Availability of questionnaire: needs permission from developer, cost or freely available  
Limitations Limited to 3 years of age and below
Link to the questionnaire (if available) Appendix to the references given below
Other comments Short, simple, easy to use, study  also demonstrated  the feasibility of having parents complete the questionnaire via the internet
Patient populations in who questionnaire has been validated Infants and toddlers in  predominantly Asian countries/regions, Australia and New Zealand; premature infants at 6 months postnatal age
References (including original publication, validity and reliability in different countries/languages, populations and long/short versions) See below
Updated by Iris A. Perez  
The last date of update December , 2015


  1. Sadeh A. A brief screening questionnaire for infant sleep problems: validation and findings for an Internet sample. Pediatrics. 2004;113(6):e570–7.

  2. Sadeh A, Mindell J a., Luedtke K, Wiegand B. Sleep and sleep ecology in the first 3 years: A web-based study. J Sleep Res. 2009;18(1):60–73.

  3. Kohyama, J., Mindell, J. A. and Sadeh, A., Sleep characteristics of young children in Japan: Internet study and comparison with other Asian countries. Pediatrics International, 2011; 53: 649–655.

  4. Teng, A., Bartle, A., Sadeh, A. and Mindell, J., Infant and toddler sleep in Australia and New Zealand. Journal of Paediatrics and Child Health, 2012;  48: 268–273.

  5. Mindell JA, Sadeh A, Wiegand B, How TH, Goh DY.Cross-cultural differences in infant and toddler sleep. Sleep Med. 2010 Mar;11(3):274-80.

  6. Huang Y-S, Paiva T, Hsu J-F, Kuo M-C, Guilleminault C. Sleep and breathing in premature infants at 6 months post-natal age. BMC Pediatrics. 2014;14:303-6.

  7. Nunes ML, Kampff J, Sadeh A. BISQ Questionnaire for Infant Sleep Assessment: translation into brazilian Portuguese. Sleep Sci. 2012;5(3):89-91.

  8. Dhakal, A. K., Shrestha, D., Shah, S. C., Shakya, H., Shakya, A., & Sadeh, A.  A Nepali Translation of Brief Infant Sleep Questionnaire (BISQ) For Assessment of Sleep in Infants and Toddlers: A Preliminary Report. Journal of Kathmandu Medical College, 2015; 3(3), 102–106.

  9. Boran P, Ay P, Akbarzade A, KÜÇÜK S, Ersu  R. Translation into Turkish of the expanded version of the “Brief Infant Sleep Questionnaire” and its application to infants. Marmara Medical Journal. 2014 Oct 1;27(3).