Just for the benefit of any new cat owners, please keep an eye on your cats in this hot weather. They can - and do - get heatstroke.
I keep Blip cool by gently sponging her down with lukewarm / cool water. She loves this. We also use an electric fan in the house and put Blips bed in a shady spot in the garden during the day, but the wet sponge tip is worth passing on, I think.
In fact, I use two sheets of good quality kitchen paper - ideal.