You pass through different phases of sleep in regular cycles during the night. The two main phases are: rapid eye movement (REM) sleep. non-rapid eye movement (non-REM) sleep. You move through stages of non-REM sleep then into REM sleep and back again. Each full cycle takes about one to two hours.
Softwood. Softwood is used to describe wood from trees that are known as gymnosperms. Conifers are an example. It may also be used to describe trees, which tend to be evergreen, notable exceptions being bald cypress and the larches.oftwood. Softwood is used to describe wood from trees that are known as gymnosperms. Conifers are an example. It may also be used to describe trees, which tend to be evergreen, notable exceptions being bald cypress and the larches.
Uses: Softwoods are most often used in dimension lumber for construction framing, pulpwood for paper, and sheet goods including particleboard, plywood and fiberboard. Species examples: Cedar, Douglas fir, juniper, pine, redwood, spruce and yew. Density: Softwoods are typically lighter in weight and less dense than hardwoods. Cost: Most species are considerably less expensive than hardwoods, making them the clear favorite for any structural application where the wood will not be seen.