Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Soleaf / Health Care


Clean bedding guarantees a healthy lifestyle but is easily overlooked by people. Airing quilts on sunny days regularly is a convienient method for drying and sterilizing. However, it is hard to judge when to do the airing and people often forget errands like this during busy days. Soleaf is designed to remind people to air quilts and pillows. The name is the combination of solar and leaf. The rubber leaf will turn green when exposed to the ultraviolet rays of the sun and the whole body gradually turns yellow when out of sunshine. The inspiration is from the photosynthesis of leaves. The time that Soleaf takes to turn from green to yellow com


shanghai jiaotong university

shanghai jiaotong university
Shanghai, China

Zheng Xianqiang,
shanghai jiaotong university

Jingchun Wang,
shanghai jiaotong university

Chenhao Jin,
shanghai jiaotong university

Lu Liu,
shanghai jiaotong university