ALZA ARRIBA!

I don't know Spanish, but my husband is from Chile. From his dad, we learned a great thing to yell at kids when you want to get them out of bed in the morning:

Alza arriba!
Trinca el coy!
Coy a la batayola!

Here's his translation/pronunciation guide:

Alza arriba! - AL-sa  a-RRI-bha (literally loft upwards)
[RR meaning hard R like Rabbit]

Trinca el coy! - TRIN-ca El COy (tie up your hammock, which is otherwise known as "hamaca". "Trincar" in general parlance means to bind up or corner in)
[R meaning soft R like train]

Coy a la batayola! - COy  A LAH   BAH-tah-yoeh-lah (Put the hammock away on the batayola which I think means bulkhead stringer, some sort of shelf structure along the hull or bulkhead)