feel sleep
The Spanish phrase 'sentir sueño' translates to 'feel sleep' in English. This is essentially used to convey the feeling of being sleepy or tired. In other words, when someone says 'siento sueño' in Spanish, they are expressing that they are feeling sleepy or that they are tired. This phrase is generally used in the context where one is expressing their physical state, particularly when it's near bedtime or after a long day. As with many idioms, the literal translation may not offer the exact idea of its actual meaning.
Today I feel sleepy because I didn't sleep well last night.
This phrase expresses that the speaker is feeling sleepy today due to a lack of good sleep the previous night.
After lunch, I often feel sleepy.
This phrase indicates that the speaker frequently experiences sleepiness after having lunch.
I can't concentrate, I feel sleepy all the time.
In this sentence, the speaker is describing how their constant feeling of sleepiness affects their ability to concentrate.