My sofa was bought by IKEA, and when I bought it, it felt very soft and comfortable, but then I felt

If you want to do it yourself, there are two solutions:

1. Like you said, add springs in it.

2. Your sofa is thicker, so you can divide the sponge into two layers, choose the hard sponge in the lower layer, and choose the thicker one, so that people will not sink when they sit, and the hard sponge is not easy to deform, so that the use time is longer. A thin layer of soft sponge is used on top, so that people can sit more comfortably.

As for the place to do it, it is recommended that you also go to IKEA to do it, firstly, the size is more accurate, and secondly, you are also their regular customer, and buying a set of sofa cushions is also equivalent to increasing their turnover. If you go somewhere else to do it, it is estimated that it will be more difficult, because you don't buy the sofa Bi Jing from others, just a set of sofa cushions, the profit is too small, generally speaking, people don't do it, but there are special ones, which requires you to find it.

The sponge seat bag is harder. You can choose a pure sponge sitting bag, can your sofa be disassembled and washed? If you can disassemble and wash, you can change the seat bag, and if you can't disassemble it, ask someone else to replace it for you.

The spring seat is on the soft side.

IKEA's things are good, maybe you buy that kind of soft cushion, it is recommended that you go to the store where you bought the sofa to consult, because IKEA's things can also sell various accessories, soft and hard cushions have a copy, different needs and different use.

Come to the North Fourth Ring Road store to see the Bao Narui sofa, there are many varieties, I believe there will be your satisfaction.

Which one? The IKEA soft sofas are of good quality and rarely collapse.