Further info for recommendation

Thank you for responding to my previous question (We are looking to change from a king size to a super King size, our current mattress is a Dorlux Melbourne, it is comfortable but now quite old. We have been looking round and have the following on our short list so far – silent night mirapocket ultimate, silent night diamond collection 1400, Sealy teramo, Sealy Napoli and Hypnos ortho 10 and Hypnos silk, what do you recommend? We are mainly side sleepers, I am 10st 7 my husband is 11st 5. Any help much appreciated. Thanks)I have further information - the feel we prefer is an initial 'sink' followed by a 'dead' feel to the mattress, hope you will know what I mean, we don't like 'bounce'. Regards