hiwe want to go for the artisan range - natural fibres definitely.whilst our weights dictate the spring tension will be medium - we're struggling over the final feel part...!our current matress is a microcoil 7 pocket 2100 innegetic latex (which i was surpriesd to learn!) medium spring and has the pillow top style - it's 6 years old - but we find it too squishy/bouncy - and often too hot... and we wake each other up moving from side to side and getting in and out..it is on a 15 year old slatted frame - which i now understand is old and needs to go!so we want to buy both the artisan frame and matress in kingsize...we want a firmer feel than currently - but not something that is so firm it would cause aches... i have weak lower back and have pain from being in any position too long so i do tend to move around a lot.. we are both mainly side sleepers...grateful for some opiion and advice!