I was visiting a freind with my 5-week-old yesterday, and my son started fussing. While he normally fusses quite a bit at that time of night, I can usually sooth him with a finger, rocking, and nurseing for a bit before he finally conks out.
However, none of that was working: He degraded into full-blown rage, red face and breath holding included. This upset thier 4.5 month old, and everyone got a head ache. I take him outside into the cool air to cut the noise down...
and he falls silent in less than two seconds. Apparently, a onsie at 75 degrees is way to warm for him. He has the same outfit on at home, plus a blanket when napping, and I keep it at 69-71, depending on who set the thermostat last. Even when outside in 40 degree weather, he seems happiest with a shirt and pants under a footed pair of pj's, with a couple blankets thrown on for good measure.
His hands and feet are normally cool, but any wamer than that, and I risk him sweating really badly.