My buddy (ThunderingBull) has that problem with his too little guys. They just got back from their "fuzzy ball" trimming last week. TB says that they are worse at night than before.

They just to sleep at night in the big carrier and TB would lock them in. They are too big to be confined in there together with the litter box, food and water dishes. They run the house ragged all night if they are left out together. He has taken to putting one in the carrier all night and let the other one roam. He tries to alternate nights.

The other three house cats don't seem to have that problem. (Yep, that's a total of 5 house cats.)

Our two seemed to have settled out of the "night crazies" sometime back. One trick that we found effective is to keep them awake during the day. If you see a cat napping during the day, go pick it up and play with it.