Translation:I can't sleep.
jIQongbe' means I don't sleep or I'm not going to sleep or I didn't sleep. Maybe you were staying up for New Year's or you needed to reset your body for a new time zone. There's no implication that you weren't able to sleep.
But when you add -laH, to get jIQonglaHbe' you're saying that you can't sleep, you lack the ability.