Sleeping through the night?

Last night was one of those GREAT nights that we actually got to catch up on sleep. Jackson and Lance still need to be let out (usually twice) during the night to do their business. They bark to let us know that they need to be let out, which results in us walking out the door, down the stairs, and into the backyard. We can't trust them to just go out, pee, and come back in because once they're out there, they just want to play. If we stand there with them, they will usually potty and come right back in. But needless to say, standing outside in the middle of the night for a few minutes definitely interferes with sleep.
We try to tire them out as much as possible before bedtime, which is sometimes hard because WE are so tired from lack of sleep. If we put them in the crates at 10, they will usually be up a little after midnight needing to be let out. So, last night, I got up around 1:30 to use the bathroom and noticed that they hadn't barked to be let out yet. I figured they would soon, so I went ahead and let them out anyway. They went right out, came back in, and didn't make a sound for the rest of the night. When Greg got up around 5 to go the gym, we realized that they hadn't needed to be let out again. And Greg finally got to sleep through the whole night!
I keep hearing that the middle-of-the-night breaks won't last long, and that one day, they'll just be able to make it through. I can't WAIT for that day. I miss sleep.