The not so great news is that these big stretches are generally his first sleep of the night, which begins somewhere between 9:00 and 10:00 every night. Being a nocturnal creature herself, Mrs. Zookeeper usually has a lot to do after Monkey goes to bed, so she isn't getting the benefit of the longer sleep yet. After his longer sleep he goes back to his three hour pattern, and we're back to 2 hours by the time Mr. Zookeeper is getting ready for work. So we're still up a fair amount. But there may be some light at the end of the tunnel. If he's done it twice he can do it again!
Here is Monkey with the man of the hour: