Hi DBug! I have the PB Square upholstered sofa w/ chaise and the PB Comfort upholstered sectional. The Comfort has deeper seating than the Square. If I remember correctly, it's only 5 or so inches deeper but made a difference to us as I wanted a row of continuous pillows to make it extra comfy. You kind of just sink into it. The wedge corner piece on the sectional adds to the comfort. My husband and guests on the taller side notice it is more roomy as well. Your comment about looking into slipcovered sofas reminded me that before I got the pb Square, I bought two of their slipcovers to put over my old sofas and they were great. Slipped a bit but they weren't made for those sofas. Have you seen the pb slipcovered sofas in person? They look nice and I'd bet they're wonderful! Good luck! Obviously I've spent way too much time obsessing over buying sofas so if you have any other questions on fabrics or configurations let me know! Got back on to add that even though their stuff can be expensive, the thing that always makes me go back is their customer service. The wedge's cushion on our newer sectional looked like the fabric wasn't sewn right as it was rather "loose" looking. They replaced it, no problem. I know other places have great service too but I'm a creature of habit and stick with something if I know it's good!

Agree that Kivik is good looking, but don’t think it comes as sleeper sofa...? I think that was a requirement.. maybe IKEA Finnala could work- it’s not as nice looking as Kivik IMHO but very simple and practical. The foam in many sofas will most definitely be a type of plastic, so might be a no-no... I think OP will have a hard time getting away from that though..

I have an old bumper sectional from Room & Board that I need to replace and I have been hunting for bumper sectionals too. I have been looking for made in the USA and something equal or better quality than what I have now. Many of the mid-high end furniture brands have customizable sectionals and you have to dig into the specifications to see if they offer a bumper option. I have not yet pulled the trigger on any of them yet. Taylor King - Taylor Made Plush Sectional https://www.taylorking.com/furniture/taylor-made-plush-sectional-3/?category=taylor-made Lee Industries - 5288 Series http://www.leeindustries.com/style_detail/lee/id/5288-Series/in/5288_Series_1019 Lazar Industries - Geo Sectional https://www.lazarind.com/geo-3pc-sectional-4 Crate & Barrel - Axis https://www.crateandbarrel.com/axis-left-arm-corner-bumper/s177233 Younger Furniture - Sadie http://youngerfurniture.com/product.aspx?collection=sectionals&collection_id=129 Younger Furniture - Summer http://youngerfurniture.com/product.aspx?collection=sectionals&collection_id=197 Taylor King is probably the highest quality I found and I suspect the price to match. @newkitchenny55 hope this helps you as well

I wouldn't base my decision on spring vs foam cushions, I would rank frame quality and fabric higher. Cushions eventually wear down regardless of spring or foam construction. I think it is easier to replace a foam cushion after ~7 years compared to a custom spring replacement. They both have a different feel to consider. Spring cushions feel more like you are sitting on top of the sofa instead of sinking in (think about a movie theater cushion, they often have springs). Springs can last longer but are also more susceptible to other issues (noise when moving). If you have an Ethan Allen near you, they usually have a sofa with numerous cushion styles to test our, including springs. They charge $200/piece extra for springs. I wouldn't recommend Crate & Barrel due to quality. C&B is a notch up from IKEA, but not great. They don't use mortise & tenon joinery, the frames are much lower than the back cushions (cost saving design but doesn't support cushions and is uncomfortable). They don't use batting on the outside of the frame so it quickly shows the wood frame through the fabric. Their fabrics are unusual and if you pick an upgrade from the stock fabric, the price becomes comparable to a higher-end sofa. West Elm is about the same and they often use pine for frames (softwood w/ lower density compared to hardwood). I've had all these brands and have been happier with Pottery Barn and Ethan Allen. Have you looked at Rejuvenation or Williams-Sonoma? I've priced nicer custom sofas for the same price as C&B. Hope that helps!