I always worry about toddlers up and around at night. Chairs can be moved to unlock doors, climb up on the counter top, or fall over on top of them while trying to be moved. Toilet investigations: headfirst. Going outside to try and play with a raccoon. ETC. etc. ETC. When I think of the number of times during the day that I have to say "no"...what happens at night when I'M asleep? Danger, Will Robinson!! All comedy aside, it's a huge concern. If all of our houses were TRULY baby-proof, we wouldn't have to say "no" or "redirect" all the time.
Regardless of your decision about bedtime I STRONGLY suggest doing one of the following : Gate his room (so he can open the door and see out, but still be kept in), Gate off the hallway, or put him back in his crib for another year or two. Yes, as far as you know he always comes into your room...but does he go there first? If he has so far, will he always? Probably not.
(((BTW....Never lock a child's door. EVER. Even if you're up. It's actionable by CPS, and of course if you're not awake it's a huge fire & safety hazard)))
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Onto bedtime though....bedtime is whatever works for you and your family. 930-10 works perfectly for us because we're night owls, I have some close friends who feed their kids dinner @ 4pm and it's to bed by 5:30, because mum and dad never wake up later then 4am. Of course, I also know people whose children have gone to bed at midnight their whole lives...but they also are allowed to sleep correspondingly late.
Most toddlers/young children need about 11 hours of sleep. WHEN they get that sleep isn't really all that important. Most people put their kids to bed 8-ish because they want them up around 7am in order to take them to school, or because they have to work. There's no such thing as "too late" or "too early"....it's really just HOW MUCH that you need to be concerned about, and when YOU want them to take it.
All that said...if you want to get your little guy going down earlier...here's what we do every (other) time we change timezones or end up with bedtime all goofy because of illness, etc.:
3) Don't tell them (aka : act normal)
2) Back up the bedtime routine by 1/2 of an hour every night
1) Back up dinner correspondingly
This always works for US because it's super-gradual and our son's stubborn...He'd be happy to be playing all day/all night if we'd let him...But we have friends/colleagues who do it in hour long increments instead of half hour. It doesn't seem to our son that we're putting him to bed earlier because we don't make a big deal of it. Depending on how much we want to lose/gain it can take a few days to a week or two, but unless we've totally switched our days and nights around it's what we use, because we've found it to be the no-pain method. :)
Best of Luck
Z.
PS... Don't forget the "usual suspects" around bedtime changes
1) Naptime-go-bye-bye ( :P ... always hate that one)
2) Pain
- Teeth
- Allergies/Sinus/Ear-infections
- Growth Spurts (a childrens multi-vitamin before bedtime &/or a bananna can work wonders.)
3) Lack of sleep aka "Sleep Begets Sleep"