So I know sleep is good for the baby, but is like only 3 hrs dangerous? That or less is all I will…

So I know sleep is good for the baby, but is like only 3 hrs dangerous? That or less is all I will be getting until bedtime tonight... Wondering if I should just call in to training in the morning and take it next month. I have been crying, nauseous and my throat hurts, and this insomnia has kept me awake all night. :(