what can I do about my hot memory foam mattress?

[lisasimpson]

I love our mattress I find it really comfy but DH is having trouble sleeping even in this weather as he thinks it's far too hot. I have read that other people have had this problem but not sure what we can do about it?
He's saying he's going to have to sleep elsewhere but we don't want to get rid as it cost £1,000 for bed and base!
any ideas please?

no ideas then?

have you got cottom cheets on it? And a light quilt on top?

They are warmer than conventional mattresses. We've found we only need a summer duvet (4.5 tog) on ours. We haven't had ours long so I can't tell you what it's like in summertime - but we generally have a fan running all night long in the summer anyway as it's so hot in our room (and Mrs Don't Like Moths won't have the window open )

We have a mattress protector on ours too - hadn't thought to mention that til I read littlelapin's post but that helps a bit too I think.

thanks, will try the mattress protector but the quilt is already 4.5 tog!
guess he just feels the heat more but I think it's just right