The Sleepsense Spirit has a soft and comfortable top layer and spinal support is still pretty good. A very good quality and well-built mattress.
The Sleepsense Verve has a soft and comfortable top layer that offers a very nice mix of comfort and support. Very well made and partner disturbance is minimal.
The King Koil Girona Plush is a really nice plush mattress that has a comfortable top layer and spinal support is still sound. Partner disturbance is minimal and a good one if you like a softer feel.
The King Koil Girona Firm has a nice subtle amount of bounce to it and has a good level of spinal support. Still reasonable comfortable considering it is a firm.
The King Koil Melilla Medium has a nice mix of comfort and support. Partner disturbance seems minimal. Build quality not quite as impressive as the King Koil Girona range but still reasonable for the price.
The King Koil Melilla Super Firm feels quite hard and firm. The top layer seem somewhat disconnected to the underlying spring system which adds to the hardness.
The King Koil Theia Firm feels hard and springy which provides a bit of extra bounce to soften the firm feel of the top layer but still there isn’t a great level of comfort on this mattress.