sleep
The Spanish verb "dormir" refers to the physiological state of rest where the eyes are closed and the mind is temporarily inactive. Think of it as the act of powering down for the night or taking a refreshing nap to recharge your energy. In conversation, "dormir" is used both for the nightly act of sleeping and for general states of rest. Note that it is an irregular verb (o:ue stem change), so it becomes "duermo" in the first person. It is commonly used with "dormirse" when you want to emphasize the exact moment of falling asleep.
In conversation
Checking on a friend
¿Ya vas a dormir?
Are you going to sleep now?
Sí, estoy muy cansado.
Yes, I'm very tired.
Use 'vas a dormir' for the immediate future.
Talking about a nap
Voy a dormir una siesta.
I'm going to take a nap.
¡Qué buena idea!
What a good idea!
'Dormir una siesta' is the standard way to say 'take a nap'.
Examples
Necesito dormir ocho horas.
I need to sleep eight hours.
¿A qué hora te vas a dormir?
At what time are you going to sleep?
Aunque estaba muy cansado, no pude dormir en toda la noche.
Although I was very tired, I couldn't sleep all night.
