4 month sleep regression (part 2)

Well, as you can see its been a few days since I've posted.  Our issues with the 4 month sleep regression have not gotten any better.  She continues to wake every 1-2 hours; however she used to sleep pretty well from 7:30-11 but that has now gone away.  She will wake up around 8:00 bright eyed and grinning!  Last night it took me 2 hours to get her back to sleep.  At first I thought maybe it was because her room was too hot.  We've been having a heat wave and have been having problems keeping her room cool.  Its been hovering around 24 degrees in there.  Plus she was still being swaddled so I thought maybe she is uncomfortable.  Nope, not it, still not sleeping.  She is also squirming a lot more while sleeping or trying to go to sleep.  So, lets try dropping the swaddle!  Not the greatest idea I've ever had but it went better than I thought.  Still awake every 1-2 hours but she is sleeping.  Which is better then the last time I tried it.  So the conclusion is, I have no idea if I am helping or hindering the situation.  Luckily I have the happiest baby on earth and no matter what she seems to just look up at me and smile.  Perhaps her way of saying "good try Mom".