There are several theories but the two that seem to stick are that sleep: allows your body to replenish energy stores and repair itself. gives you the chance to save energy. Sleep may also aid learning and give our bodies time to organise all the memories of the hundreds of events we experience every day.
Softwood is also used in the production of paper, and for various types of board such as MDF (medium-density fiberboard). The finer softwoods have many special uses. they are used for making window frames,doors,frames,t.v. stands,flooring and beds.
softwood is just normal wood from a tree but it s only wood from certain types of trees all the pine and fir trees are softwood trees conifers and the leafy trees like oak s and maples deciduous are hardwood trees the difference is literally that conifers produce a softer more easily dented wood than deciduous