It it possible to adjust a bearded's brumation schedule?

[randtm]

I'm suspecting that since brumating is all that well understood to begin with, I won't have much luck with this post, but I'll try anyway. Our bearded is a heavy brumater. He starts slowing down in late summer every year and then sleeps solid until about New Year's. Now that we've gotten used to it, it doesn't take us by surprise anymore. However, we're now finding that he seems to be backing up his schedule about 2 weeks every year. He used to go to sleep in September and sleep to early January. Last year, we went to sleep in late August and was up before Christmas. This year, he's already completely out! We're afraid he's going to be up before Thanksgiving. I hate to complain, but if he's going to do this, it sure is much nicer for us if he stays up until September and sleeps past New Year's. It makes managing the holidays and all much easier. It's much easier to ask someone to watch a sleeping lizard when we travel and such than it is to ask them to watch a hyperactive, demanding, lizard, as he is when he first wakes up for the first few weeks.

Do any of the bearded dragon veterans have any idea if there are any strategies you can use to adjust their brumation schedule and get him back to a Sept-Jan schedule and stop this backwards creep every year?

 

[AHBD]

It would be difficult, and it may upset him but then again he may do just fine. If you have any hides in the tank ,take them out so he has very little areas that he finds cozy enough for his long snooze. Even then some dragons will just choose a corner. Keep in mind that even if you delay it, he may still do a shorter version and wake up earlier than expected.....no real way to be sure. If he brumates with no lights on, that will keep him sleeping longer + stronger.