Logitech has designed a mouse specifically for use on the sofa. The Wireless Mouse M515 has a sealed bottom case that lets you use it on soft surfaces without getting snagged and caught on the fabric. It can also be used on more traditional computing surfaces as well.
Also, the M515 has up to two-years of battery life thanks to a hand-detection sensor that puts the mouse to sleep when it’s not being used. It also features Logitech’s Hyper-Fast scrolling wheel and Unifying USB micro receiver required for the laptop or home theater PC. The M515 will ship to Europe in April for £49.99 (about $80).