I thought my children were sleeping through the night....

I really thought my children were old enough to consistently sleep through the night.. FOR THE REST OF THEIR LIVES. But, apparently, not so. Grant is 4 and we have been wondering when he might be totally out of Pull Ups, and dry through the night. I was not in any rush to get this done, he wasn't dry, and really, I'm not great at laundry anyway, so why add a set of sheets or more each morning? But, he latched on to the idea when he saw that other friends and cousins were out of Pull Ups. OK, so we laid down the rules- you have to be dry for a set number of days before we're even attempting underwear. Now, don't think I'm being all mean on this subject, I know that all kids mature and different rates, and that boys take EVEN longer than girls to get a handle on this skill. So, seriously, I'm not getting my hopes up. But with the potty training, now we're back to 3 times a night practically!!! Getting him up before I go to bed at midnight ( this is really Ryan most of the time- but you have to agree this is the EASIER time to get up- you're not even asleep yet!)
Then, Grant wanders in at about 3am- mainly I think because he has to go to the bathroom, so like a crazy person, I tell him we have to get up and go to the bathroom before he can get in bed with me- he's not fully awake, so this takes SOO much longer than it should, and I'm practically fully awake before we get back to bed for a few hours. And of course, he gets more awake, so he doesn't fall immediately back to sleep, so I'm conversing with a 4 year old at 3am...

Update: We're still working on this little at a time, still haven't moved to the giant faith leap of underwear- I'm not caught up on my laundry yet. I pledge to have this under control by cub scout camp- and I think I have several years with that. We maybe can handle that. - He's now started to get into bed with Grace- but she's not awake enough to get him up to go to the bathroom ( maybe we can pay her to take him to the bathroom in the middle of the night)

The cruel thing about getting in bed with Grace is this... They ( grace and grant) always want to sleep together- and Grant insists on sleeping in his bed. So, he tells Grace that she can sleep in his bed with him- Then about 10-15 minutes later ( enough time for her to read him a story or 2), he tells her he doesn't want her to sleep in his bed- at first he might give her the option of sleeping on the top bunk, but sooner or later, he throws and all out fit, and tells her he doesn't want her in his room. I'm not sure how to handle this, because I really just want them to go to sleep and be quiet! Poor Grace is now crying ( even though this has happened about a thousand times), and sulks back into her room. Grant gets yelled at, and hopefully they go to sleep.
But, now, we are finding that after Grace has gone to sleep in her bed, Grant has snuck in her room and is now asleep in her bed. What a manipulator..