The Chiro Orthopaedic Mattress, Royal Soft Euro Feel has a number of features that may appeal to those looking for a comfortable and supportive mattress.

Here are some additional details on some of the features you mentioned:

Soft Euro top feel: The Euro top is a type of mattress top that is sewn onto the mattress, rather than being quilted into it like a pillow top. This can provide a plush feel while still being supportive.

Hypoallergenic fabric: Hypoallergenic fabrics are designed to be less likely to cause allergic reactions. This can be beneficial for those with sensitive skin or allergies.

Pocket spring system with no-turn technology: A pocket spring system is a type of spring system where each spring is individually wrapped in fabric. This can provide more targeted support, as the springs can move independently of each other. No-turn technology refers to the fact that the mattress does not need to be flipped over, as it is designed to be used on one side only.

In terms of lower back support and posture, a mattress with a pocket spring system and memory foam provide good support and help maintain spinal alignment. However, it's worth noting that everyone's needs and preferences are different when it comes to mattresses, so it's important to try out a variety of options to find the one that works best for you.