It's a really good idea. It works well at waking you up gently... WHEN IT WORKS PROPERLY!! I've had this product now for almost 5 years and recently bought a newer model for my son who is terrible for getting up. I find them both very fiddly to set, but the biggest issue I have with them is when they randomly come on in the middle of the night at a completely different time to the one I have set. It doesn't happen all the time, granted, but I love my sleep and when I've been woken at 1.30am because the bedroom has been illuminated, it makes me want to smash it with a hammer and not use it again. I've tweeted Lumie about it, no reply. I really don't see much point in using it if it's going to disturb me and ruin my sleep altogether.