It's no surprise to learn that prolonged use of a laptop is bad for your posture. The solution has long been to use a laptop stand, but many of stands don't provide adequate height, and when it comes time to hit the road, they tend to stay on the desk at home. The Roost is a new take on the laptop stand that aims to address these issues.
When fully extended, The Roost lifts the top of a 13-inch MacBook Air screen to 19.25 inches (48.9 cm) above the table. This places the screen at eye level, preventing hunching and improving posture.
While the extra height is a bonus, The Roost also combines this with the ability to collapse to only 1 inch by 1.5 inches wide and 13 inches long (2.5cm x 3.8cm x 33cm). Add carbon fiber and Delrin plastic construction to the mix and you have a strong, portable stand that weighs just 5 oz (142 g).
The Roost is designed to support most laptops 13 inches and larger that have a clamshell hinge. The company has a guide for determining if your laptop will fit. It can also be used for supporting other things you might want at eye height like tablets and books.
The Roost creator James Olander is funding for his device on Kickstarter where it has already blown past its modest US$9,300 goal.
Olander talks about the development process in the Kickstarter pitch below.
Source: The Roost Stand and Kickstarter
I think it would be perfect when watching videos on ones laptop computer; IMO.