The twins started sleeping from 9pm to about 3am at about 7-8 weeks. One day, they just would not wake up for the midnight feeding. Now, at nearly 12 weeks they sleep from 8:30pm to 4:00am reliably, and they are starting to not want to wake up at 4, so this weekend we will let them sleep until they wake us up, hopefully 5-6am.
That is pretty accurate.
At about 18 weeks we knew he was trending small and they were watching closely. We were told to hope we make it to 23-24 as that would be a big milestone (viability). They told us starting at 22 weeks or so to keep a bag packed as any day we went in for a scan (twice a week) could be the day they take them out. So since December we had a suitcase packed in the trunk.
They also told us that if something happened before 27 weeks or so, there is a high chance Jack would not make it, and Elena could have issues from being out early. The doctors were honest and realistic and did not sugar coat anything, with survival percentages and all. The nurses expressed a lot of optimism though. In general we appreciated the honesty, albeit sometimes hard to hear, as we are both realistic and would not want to be told all is fine then one day have the whole thing collapse. It helps my wife is a human geneticist though, and she has a higher level of understanding of the various issues than the average patient.