We are having huge problems keeping out LO's room cool at the moment. It's south facing and is like a sauna, even with the window open and blackout blinds up all day. We have bought a tower fan but it just circulates the warm air around and our 8 month old just doesn't know what to do with herself. She sleeps in just her nappy and a summer grobag - we tried without the grobag and as she's very mobile she kept getting limbs stuck in the cot bars. Last night she woke crying at 12, 2, 3, 4 and then 5! I know we hardly ever get weather this hot but do you think it's worth investing in a cheapish air conditioning unit?