Retreats, hideaways, escape spaces - call them what you will, such havens offer us a personal, private and peaceful place to nest, nurture and take time out. These spaces offer the chance to create a completely unique interior. Be it a simple garden room, a homely shepherd's hut, a yoga-lover's cabin, a fishing lodge or summer house, a treehouse, a circus wagon, a purpose-designed garden smart pod, or even a canal boat, the glorious...