We get a new matress from http://www.1stforcomfort.co.uk/ which is just down the road from us. (so if your based around Manchester they deliver for free “If your postcode begins BB, BL, M or OL or you are prepared to collect your mattress, we can offer you a massive discount of up to 40%” )
They had 3 different matress’ to try in their showroom above the factory – a medium foam, a firm foam and a mix of sprung with a foam topper.
We found the best one was the sprung with foam topping – more comfortable than just spring, but more supportive than just foam.
Certainly its warmer in winter than our old sprung matress, but its not sweaty.
And at £300 with local discount…very good value