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.
A: There are various examples of softwood trees, some of which include the juniper, yew, spruce, pine, Douglas fir, redwood and cedar. Gymnosperm trees, which normally have cones and needles, usually produce softwoods. In simple terms, timber from coniferous tree is the softwood, and timber from a deciduous tree is the hardwood.