The new Neverwinter Nights 2 expansion Storm of Zehir disallows resting in many areas. This is much more restrictive than what we're familiar with in other NWN2 campaigns - or any other D&D-based game, for that matter. Even after you clean out an entire dungeon, you're still not allowed to rest there.
The solution they give is the Stone of Alarm. It sounds an alarm when enemies get near, allowing you to shut your eyes and get some well deserved rest. Unfortunately, the stone works only once, and costs around 1000 gold pieces. I thought this to be rather lame - to have to pay 1000 gold for each rest is expensive, especially since we're used to always being able to rest.
My solution: unzip my altered Stone of Many Alarms ZIP file in your NWN2/Override directory, and buy a new Stone of Alarm or give it to yourself:
type "DebugMode 1", enter
type "giveitem nx2_t_alarmstone 1", enter
type "DebugMode 0", enter
Enjoy resting like we're used to!
PS: the alarm stone fix by "player1" is also part of this new Stone of Many Alarms. Thanks player1!
Download the Stone of Many Alarms