Putting up a Christmas Tree isn't the same as adorning it.   I think it's better to let it settle in for a few days before you dress it up.

Actually we stopped having an indoors tree some years ago, because of our cats.. And since we used to get trees with roots and planted them out that meant problems. So now we heave one in a pot that's still movable so it can look in on us, and we decorate it a day or so before Christmas.