As you are a side sleeper, you should not sleep on a mattress that is too firm otherwise this can cause pressure point pain.
Also as you are a hot sleeper, you really need to sleep on a mattress that has 100% natural fillings.
Our Artisan Range of mattresses all have certain amounts of natural fibres starting with the Artisan 1500 up to the Artisan Bespoke 002 and also have different comfort levels. It may be preferable for you to telephone our office on 0161 945 3757 to have a chat about which mattress would be more suitable for us as we also need to know body weights etc.
I hope this assists and look forward to hearing from you in due course.