Lazybeds are the original raised-bed farming. On the Isle of Harris, where almost nobody bothers to farm or garden anymore since the Medieval Warm Period, remnants of old lazybed "farming" - more like heavy subsistence gardening - are often seen where there is enough soil to plant. There is not very much soil for planting, and peat bogs can not be gardened. However, raised beds with good drainage (always sloping how towards the sea), enhanced with seaweed as fertilizer, could grow enough peas and potatoes for a crofter (who also had some sheep and cattle). Maybe some oats or barley, but not much.
Like Ridge-and Furrow farming, Lazybeds date back at least to Roman times in the rough parts of the British Isles.
Today, on the islands, wool is the cash crop. The sheep just run wild until shearing time which is why so much of the landscape looks like a putting green. In fact, sheep originated putting greens. (The "rough" was, more likely than not, heather - which is very rough indeed.)
Below the fold, somebody in the Hebrides is still using lazybeds - and a view of what looks like a golf course with natural water hazard and sand traps