Ergonomic seasonal mattress with removable cover

This mattress is suitable for those who feel quite hot and/or cold in bed, have moderate sweating,are overweight (exceed their ideal weight by 5/10%), sleep on their side or in other positions (particularly suitable), do not wish to use an adjustable base, suffer from neck and/or back pain, have peripheral blood circulation issues (particularly suitable), are not subject to electromagnetic pollution, want a mattress with differing comfort levels on either side (bi-comfort), have a particular need to remove the mattress cover.