"Proč nespíš?"

Translation: Why aren't you sleeping?

[Ploomich]

Shouldn't "why aren't you asleep" be accepted?

[kacenka9]

added

[AbhiBernammers]

Can this be used as a suggestion? Consider this situation: My friend has an headache and I suggest to him "Proč nespíš?"

[VladaFu]

yes