I have been fascinated by Phillips' wake up light for sometime, and the principle of waking up gently is borrowed from here. Additionally, I have heard (and experienced) that it is better and easier to wake someone when they are sleeping lightly rather than deeply. Knowing this, I added a PIR sensor to check for when a sleeper is moving, and have programmed the wake up light to coordinate itself with this feedback.
Is this a good/useful/informative piece of content to include in the project? Have your say!