Ergonomic seasonal mattress with removable cover

This mattress is suitable for those who do not feel particularly hot or cold in bed, have mild sweating, are overweight (exceed their ideal weight by 5/10%), sleep on their side or in other positions, do not wish to use an adjustable base, suffer from neck and/or back pain, have peripheral blood circulation issues,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.