Sandstone: Rock for Crack Climbing. Sandstone is a sedimentary rock, a rock type that encompasses a wide variety of characteristics and is deposited directly on the earthâs surface. Roughly 75% of the earthâs land surface is covered with some type of sedimentary rock. Sedimentary rocks like sandstone form when minute rock particles, often from granite, are deposited by wind and water on earth surfaces.
8. 1  Other Causes. 2  Diabetes causes arms or hands and feet to fall asleep even when one is awake and relaxed. 3  Hand surgery and arthritis damage or irritate the nerves.
I'm a guy age 22. Answer. This sounds like a distressing problem. As you know it is not uncommon for a limb to fall asleep from time to time. It occurs when blood flow is temporarily stopped from getting into an arm or leg. Feeling is lost in that limb until blood flow (and oxygen) returns.