Java threads

My Java application running 50 threds in all.. One monitor thread checks for dead threds among these 50 and if there is any it restarts it...

But this logic was slowing down the application so.. i want to use sleep method to sleep this monitor thred for 30 mins so it shudnt affect performance of other threads.

using method sleep to make sleep thread for 30 mins will be feasible???

thats the only way I know of to make a thread sleep. I dont see why that wouldnt work. GL