How to Say I'm Tired in Spanish

It's 11 p.m. in Lima, your host family is still chatting over dessert, and you try to excuse yourself with "Soy cansado." They look puzzled, because you just announced that you are a tired person by nature. Knowing how to say I'm tired in Spanish takes just one small switch, and it also gets you out of long dinners politely.

Why "I'm Tired" Isn't One Phrase in Spanish

English uses "tired" for everything: a long workday, a late night, boredom, even being fed up. Spanish splits those feelings into different phrases, and picking the wrong one is a classic beginner slip. Learners searching for how to say I'm tired in Spanish usually find one translation and stop there, but you'll sound far more natural with three or four.

This post covers the everyday options, the verb each one uses, and when a native speaker would pick each. By the end you'll be able to tell your friends you're exhausted, sleepy, or simply done for the day.

Estoy cansado: The Default Way

The most direct translation is "Estoy cansado" (I'm tired). It uses estar, the verb for temporary states and conditions, because tiredness comes and goes. Use ser and you describe a permanent trait, which is why "Soy cansado" sounds odd.

Remember that the adjective agrees with the speaker. A man says cansado, a woman says cansada, and a group says cansados or cansadas.

Key Phrases

• Estoy cansado / cansada (ehs-TOY kahn-SAH-doh) — I'm tired
• Estoy muy cansado (ehs-TOY mooy kahn-SAH-doh) — I'm very tired
• Estoy agotado / agotada (ehs-TOY ah-goh-TAH-doh) — I'm exhausted
• Estoy rendido / rendida (ehs-TOY rehn-DEE-doh) — I'm worn out (very common in Latin America)
• Estoy muerto de cansancio (ehs-TOY MWEHR-toh deh kahn-SAHN-see-oh) — I'm dead tired

[AUDIO: Estoy cansado]

Grammar Note

Feelings that change use estar plus an adjective, so the pattern is estoy, estás, está followed by an adjective that matches your gender and number.

• Right: Mi hermana está cansada. (My sister is tired.)
• Wrong: Mi hermana es cansada. (This says she is a tiresome person.)
• Wrong: Estoy cansada said by a man. Match the adjective to who you are.

Tengo Sueño: I'm Sleepy

Here's a distinction English doesn't make. If you want to say you're sleepy, as in ready for bed, Spanish uses an idiom with tener: "Tengo sueño" (literally "I have sleep"). The same verb appears in tengo hambre (I'm hungry) and tengo frío (I'm cold).

Cansado means your body is worn out. Sueño means you want to sleep. You can be tired without being sleepy after a hard hike, and sleepy without being tired at the end of a lazy afternoon.

Key Phrases

• Tengo sueño (TEHN-goh SWEH-nyoh) — I'm sleepy
• Tengo mucho sueño (TEHN-goh MOO-choh SWEH-nyoh) — I'm very sleepy
• Me caigo de sueño (meh KAI-goh deh SWEH-nyoh) — I'm falling asleep on my feet
• Me estoy durmiendo (meh ehs-TOY door-MYEHN-doh) — I'm dozing off

Notice that with tener you say mucho, not muy. Because sueño is a noun, you say mucho sueño, while with an adjective like cansado you say muy cansado.

Other Ways to Say You're Tired

Native speakers rarely stop at one phrase. These expressions add colour and are worth recognizing when you hear them.

• Estoy hecho polvo — I'm wrecked (literally "made of dust", very common in Spain)
• Estoy molido / molida — I'm beat (literally "ground up", common in Mexico)
• Estoy muerto — I'm dead (informal, very widespread)
• No doy más — I can't go on (literally "I give no more")
• Estoy harto / harta — I'm fed up (this one is about being tired of something, not physically tired)

That last one is a trap. For being tired of doing something, cansado de works: Estoy cansado de esperar (I'm tired of waiting). Harto de is stronger, closer to "sick of".

In Argentina and Uruguay you'll hear "Estoy reventado" (literally "burst") for being exhausted, and nearly everywhere you can say "Estoy muerto". Spanish tiredness is wonderfully dramatic.

Practical Application

Here is a short exchange you can use after a long day of travel. Say it out loud once and it will stick.

• Anfitriona: ¿Quieres algo de comer? (Do you want something to eat?)
• Tú: Gracias, pero estoy muy cansado y tengo mucho sueño. (Thanks, but I'm very tired and very sleepy.)
• Anfitriona: Claro, descansa. (Of course, rest.)

Step by step: start with estoy plus a feeling adjective, add tengo sueño if you mean you want to sleep, and finish with buenas noches (good night).

Practice Exercises

• Fill in the blank: Mi madre ___ muy cansada después del trabajo. (ser or estar?)
• Fill in the blank: Los niños ___ mucho sueño. (tener, conjugated)
• Translate: I'm exhausted after the trip. (a woman speaking)
• Multiple choice: Which means "I'm sleepy"? (a) Soy sueño (b) Tengo sueño (c) Estoy sueño
• Translate: We are very tired. (a group of men)
• Multiple choice: Which is correct for a woman? (a) Estoy cansado (b) Estoy cansada (c) Soy cansada

Answer Key

• está (temporary state, so estar)
• tienen (Los niños tienen mucho sueño)
• Estoy agotada después del viaje.
• (b) Tengo sueño
• Estamos muy cansados.
• (b) Estoy cansada

Conclusion

You now have more than one way to say I'm tired in Spanish, and you know why each one works.

• Use estoy cansado/a for physical tiredness, and make the ending match the speaker.
• Use tengo sueño when you're sleepy, with mucho rather than muy.
• Add hecho polvo, molido, or no doy más to sound like a local.

Ready for more? Try our related lessons on tengo expressions like hunger and cold, then tell us in the comments which phrase you'll use first. Practice it tonight, before bed.