Sleep is personal. While many people notice a positive difference immediately, it can take a few nights for others to get accustomed to sleeping under the additional weight. We like using the fleece side while relaxing but sleep with the Merino wool side against us to take advantage of wool's temperature-regulating qualities.
Weighted blankets are designed for individuals. If the blanket is too large our experience is it may slip off the bed and it may add more weight than is needed for one person. The blanket also works well as a throw beyond the bedroom.
Yes. Because the blanket is filled with shredded fabric, the entire blanket is washable. Check your machines capacity and it may take several cycles to dry. The wool may have a slight odor if it stays wet too long.