I've added Panucci support to "sleeper" and also added more buttons (5, 10, 15, 30 and 45 minutes) to the widget. You can get the modified source here (with dget):

http://khan.thpinfo.com/~thp/deb-out...0.2.0-3thp.dsc

You can also download a ready-to-install binary .deb of it here:

http://khan.thpinfo.com/~thp/deb-out...0-3thp_all.deb

I've sent these changes to twaelti for integration in a future release

Obligatory screenshot:



EDIT: Of course the code is also easily modifyable to either add new "actions" (in on_sleeptimer_fired) and new minute values (simply edit/add to TIMER_PRESETS).