S.H.
Sleep patterns in babies are NOT static. They CHANGE. Remember, they are constantly going through developmental and cognitive changes... and growth spurts too. Take into consideration previous responses. But, this is my addition to your question.
Think back yourself... throughout your life, since a little baby, has your own sleep patterns stayed exactly the "same" all your life? Do you yourself sleep through entire night, solidly... without disturbance what so ever? Sleep patterns are transient as well. They ebb and flow and change. Sure, having a sleep time "routine" is a good thing....and children/babies need that and we can help them to sleep better. But it is not always a slam-dunk. At 10 months old, their cognitive "awareness" is changing and they are maturing and sometimes they get "separation anxiety" as well and even if in the crib they may wake and want to make sure they can "see" their parents. And, as you've seen, at 10 months they are more "mobile"... he can pull-up in the crib. BUT... many times the baby will cry because they don't know HOW to get themselves back down to a sitting or "sleeping" position and get back to sleep by themselves. This can also be scary for them. It's a big endeavor for a little baby. Imagine that. Both my children had entirely different sleep patterns and ways of falling asleep. Each child is different, with different temperaments and personalities.
It will pass.... its one of MANY phases a baby/child will go through. Or, he might just be hungry. Sometimes we will never really "know" why they wake up. But they will, with our help, find their way again. Good luck and take care,
~Susan
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