I can recommend getting : https://www.amazon.com/Withings-Nokia-Sleep-Temperature-Compatible/dp/B078Z1B34S https://www.amazon.com/Withings-Nokia-Sleep-Temperat

I can recommend getting : https://www.amazon.com/Withings-Nokia-Sleep-Temperature-Compatible/dp/B078Z1B34S https://www.amazon.com/Withings-Nokia-Sleep-Temperature-Comp... It doesn't replace the true sleep study, but can still help