to fall asleep, to go to sleep
Yo nunca he tenido problemas para dormirme.
I've never had trouble falling asleep.
Cuando iba a dormirme vi caer una sábana.
As I was about to go to sleep, I saw a sheet fall.
— La doble vida de Verónica (1991)
Me preocupaba y no lograba dormirme.
I was worried and couldn’t fall asleep.
Estaba demasiado feliz para dormirme.
I was too happy to go to sleep.
Pienso en ti antes de dormirme y al despertarme por la mañana.
I think of you before I fall asleep and when I wake up in the morning.
— Cinema Paradiso (1988)
Voy a dormirme temprano porque mañana tengo un día muy largo.
I'm going to sleep early because I have a very long day tomorrow.
Me cuesta dormirme porque hay tanto ruido.
I have trouble falling asleep because it’s so noisy.