The furniture experts suggest opening your curtains during the day to let sunlight warm your home. The furniture experts then suggest you should close your curtains when the sun sets to help trap the heat inside. Longer curtains that reach the floor provide better coverage and help block cold drafts from entering through window frames. The experts suggest making sure your curtains hang all the way to the floor and are wide enough to close tightly in the centre to the best effectiveness. This is because gaps on the sides can allow cold air to enter and warm air to escape.
Source: The Times February 27, 2026 11:54 UTC