Hi T., I have a 4 1/2 yr old and a 3yr old son, and a 4 month old daughter. We also live in Northeast San Antonio, Live Oak actually. Our boys have always been good about bedtime as well, we have always had a routine about it just like you. I do have to say that right about 2 1/2 to 3 years old they both went through what your son is doing and they are just testing the waters. If you are certain that there isn't any reason for the anxiety he seems to showing about going to bed, then just stick with your routine, make sure he's had a drink, gone potty, so that YOU know he doesn't NEED anything else, and then when he gets out of bed just say, "It's bedtime" and put him back in. Just keep putting him back in bed without continueing to respond to him verbally after the first, "It's bedtime" and he will get the hint. It may take a few nights, but be consistent. We have always had a strong resolve about bedtime, because that is the only time my husband and I get to spend together, and kids need to get a good night's sleep. Our kids are early risers so all we can control as far as how much sleep they get is get them to bed at a decent time. Hope this helps.