9 months - wonder weeking again

baby's night-time sleep pattern was all wonky for 2-3 days in the past fortnight, and i think we have yet another mental leap to thank for her erratic sleep. she kept my sister up all night when she stayed over during the long weekend, and she was also very cranky on one of the nights we spent at sentosa. she is really a textbook baby when it comes to those mental leaps.

am hoping we've seen/heard the last of the middle of the night crying sessions for this round!
[p.s. it was not to be. but at least the crying (if any) happens around midnight and then we have peace and quiet for the rest of the night.]

this is what the wonder weeks app says:

Now, your baby is in the leap of 'sequences,' which will enable your baby to be constructive. At this point, he will start to put something together for the first time in his life. Until now, that was quite different: he threw things aside, was squeezing things or took things apart. The transition to 'sequences' is a giant leap. Going through this change implies a real quantum leap forward in the behavior of your baby.

Examples of what your baby might do after this leap:

• Answer simple questions. For example, if you ask "How big are you?," he will raise his arms;
• Says "hum" if he wants another bite;
• Points at things, people or animals if you ask him to;
• Puts together a simple puzzle of three pieces;
• Understands that you have to talk into the mouthpiece of a phone;
• Stacks rings onto the ring pyramid;
• Points where to go;
• Repeats a game;
• Tries to persuade you to help him with things he really could have done without you;
• Imitates two or more gestures that you make, one after another (for example, the gestures of 'Itsy bitsy spider');
• Tries to put on his sock by himself, but does not succeed