Comment on Show HN: Sleepio - how I cured my insomnia, turned into software.parentComments−cperciva14yStart with "do you go to bed at roughly the same time (within 1-2 hours) most nights?" and only ask the "what time" question if people say yes to the first one.
Comments
Start with "do you go to bed at roughly the same time (within 1-2 hours) most nights?" and only ask the "what time" question if people say yes to the first one.