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.
Hardwood is not necessarily a harder material (more dense) and a softwood is not necessarily a softer material (less dense). Different types of construction projects call for different kinds of timber, both hardwood and softwood are used for everything from structural to decorative.ardwood is not necessarily a harder material (more dense) and a softwood is not necessarily a softer material (less dense). Different types of construction projects call for different kinds of timber, both hardwood and softwood are used for everything from structural to decorative.