Associations of sleep characteristics with cognitive and gross motor development in toddlers-SDSHV8I4 Associations of sleep characteristics with cognitive and gross motor development in toddlers-SDSHV8I4 Download Association of insomnia phenotypes based on polysomnography-measured sleep duration with suicidal ideation and attempts-SDSHV8I4 Bidirectional longitudinal dynamics of self-reported total sleep time and perceived stress: Establishing potential causal relationships-SDSHV8I4