Did you know that if the whole of the Netherlands turned down the heating by one degree for one day, this would save 3.3 million m3 of gas and 6.3 million kilos of CO2? As sustainability and sustainable living is an important pillar within Mosaic World, we challenged approximately 6,000 of our residents in the Netherlands, from both Monoma and Plaza Resident Services, to think actively about their own energy consumption during Warm Sweater Day 2023: Is it really necessary to turn the heating up that high? Is the TV off, or on standby? And is the phone charger still plugged in, even when not in use? Just some small tips and savings that together can make a big impact. Not only on the environment and our joint energy consumption, but also on our residents' wallets, because lower energy consumption also means lower energy bills.