4 seater sofa with single seat cushion

[Pinkfizzed]

Hello. Looking for inspo for a 4 seat sofa which has a single seat cushion rather than 2 or 3. Also needs to be firm and not very low.

I have a one from Loaf but it is too low and too soft and deep and slouchy and no one wants to sit in the middle. Older family members especially struggle to use it.

Could be something like this https://www.dfs.co.uk/fabric-sofas/all-fabric-sofas?q/size/4_Seater%2B/sort/priceAsc/p/6

Bonus points for being able to actually see it somewhere in London!

www.johnlewis.com/john-lewis-draper-ii-grand-4-seater-sofa/p111691886

Next Wilson do a single seat, or I have a 4 seater that's in 2 cushions. If you have a big next they often have them out on display.

Thanks @boniobiscuit I am at JL right now and tried Draper. If you have this- do you reckon it "sinks" quite a lot over time? I also tried a swyft model 5 which seems to be firmer but I suppose the draper has more of a lounge / sink in feel to it. Limited by choices of colours for Draper though.

I do have it and haven't found that it's sunk at all, but it is less than a year old at this stage. I've got the motion version and it's really comfortable.