ACPI sleep/hibernation mode

[Matěj Hausenblas]

Hi List,
I have some little trouble finding documentation on putting an purely ACPI (no 
APM support) laptop (Acer TravelMate 435LC) to sleep. The apm -s command 
doesn't work since apm isn't enabled.
I would like to ask if there's an equivalent to that command but for acpi. 
I've heard something about pmtools, swsusp and acpi SX states, but I didn't 
find more precise links.
Thanks
Matej