Most furniture will puddle in the seats with use, but it's what's in the core that will dictate how much puddle you get. Regular (low density) foam rubber and down will puddle the most. To prevent puddling, high density foam is better, though the best cushion core options are called a spring loft or spring fiber. These cushions not only have foam, but they also have springs in the seat core itself. These work very much like a mattress would. Once you get up, they will spring back to retain the original shape, not allowing a puddle to be created.

Some folks call puddling comfort wrinkles and yes, they will develop over time if you buy a softer seat core or cushion and a really soft leather. A good informed upholsterer or manufacturer can help you with the right seat cushion for you if you mention your concern. You can always expect this to happen when the seat core is too soft or when down is used. Not all leather furniture will show puddling. It’s all in the seat cushion core a

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