Originally Posted by reezley
They would just be even more tired if they had to get up out of bed during the night.
Only a part time cosleeper, but did not CIO, so take this with whatever grain of salt you choose to.
While it is probably true you'd be more tired if you were getting up, I found that that was not always the case.
When I had baby in a cosleeper, and afterwards, when we started putting him down at 8pm in his crib, going to bed, and then bringing him in with us around 4am-ish, I got much better sleep than when I had him with me all night.
WHat I realized is that for me to feel human, I need to get at least one complete, uninterrupted, REM cycle, which takes around 3 hours (plus/minus some amount).
Cosleeping, especially once he got to the "hard to nurse down, thinking being latched on but not sucking was a fine plan" stage, meant that while I was never all the way to awake -- I also was not getting *down* far enough in sleep to get that REM cycle. I was constantly being slightly awakened.
He was sleeping 4-hour stretches at night from the very beginning, so what worked for everyone to get the sleep we needed was for him to start the night in his own bed, for me to get 4-ish hours of uninterrupted sleep, then interrupt that sleep very briefly, get him to join us, and go back for more sleep of slightly lower quality. The interruption of getting up was, in the end, less disruptive to overall sleep than being kicked and chewed on was.
As far as being nonresponsive - maybe a beneficial side effect of living in a tiny apartment was that both babies spent months in our room, in a bassinet touching our bed, and then moved to a crib that was "next door" but was about 12 steps away. I could hear them well and found that I woke quickly