Our son's (10months old) room is on the corner of the house and has a window on 2 of the walls (which have opening windows). Some afternoons, if the weather is still and the sun is out in full, the room heats up something shocking - around 30...eeek!

We have block out curtains (to keep the room dark for his day time sleeps), and also the windows are tinted. Opening the windows usually makes no difference (as generally this is really bad when there is no breeze at all). 

We have a heat pump downstairs; however using that to cool the room (which is upstairs) doesn't make a lot of sense. A simple fan just looks to move the air around and doesn't really help a hell of a lot (if anything adding slightly to the room due to the extra electrical device churning away). Considered the wonders of a Dyson Heat and Cool fan; however that just appears to be marketing hype as it has no cooling thingys to actually cool air (just moves it; just like a $20 fan from briscoes).

Does anyone have any thoughts? I have a funny feeling that installing a heat pump in the upstairs part of the house is the only real alternative. 

Thanks