His room shows 75 degrees. I've got him in a short sleeve onesie inside the Merlin Sleepsuit. I can't get this room to get cooler. As the time goes by into the early hours of the morning it will get cooler in here. For now I've got the ceiling fan going. I'm a little paranoid about the temp in him room with the Sleepsuit on.  This house does not have air condition and being on the first floor I don't want to open a window. He felt a little warm but not hot. Is this ok or do I need to worry?