I've only used it for a couple of weeks now but it makes a world of difference! It's the middle of winter where I live at the moment and it's still quite dark at the time I have to get up. The wrist buzzer is the least intrusive, but it still shocks me into awakening and I often don't feel fully rested as a result.Д®nter the Philips Wake-Up Light (HF3520/60). To wake up, I normally use my mobile phone alarm (loud and annoying) or my Samsung Gear Fit (which buzzes on my wrist). Like a lot of people, I need to sleep in a dark room. I actually just needed a new alarm clock and was skeptical about the claims made about it but I'm a believer now. I have been plagued with that sleep condition for many years and now it seems to simply be gone just from using this lamp. I did not really expect the immediate results I have seen but I wish I had bought one of these long ago.

And the variety of wake-up sounds are all very pleasant as well. It's simple to adjust and set up and it is just a very appealing light, and watching it lighten to daylight or fade to dusk is very r elaxing. It isn't cheap but I would say it's worth every penny. I would have to call it a miracle cure for me. I feel more calm and better rested and I usually sleep right through the night without moving around much at all. I use the sunset feature to fall asleep and it knocks me out every time. I don't know what it is that put an end to my condition but I have to credit this lamp for it. I had learned to live with it but this lamp put an end to all that the very first night and I haven't had an incident since! I still can hardly believe it. I have had issues with acting out my dreams, thrashing around, and tearing up the bed etc. My smartphone did a better job as an alarm clock but I was looking for something to help me sleep better so that's why I am willing to put up with its shortcomings. At least there is an audio alarm option with nature sounds, and my dog always wakes up as soon as the light comes on. I don't mind waking up to the light, however I am a really sound sleeper and it has failed to wake me up on a couple of occasions. I am not entirely sold on the concept but willing to give it more time. I can see this as being very useful to some folks and a complete waste of money to others. We've been experimenting with the various timers to see if we can get an optimal schedule for our needs.

It gives you the feeling it will last a while.Д«uy this lamp primarily for the 'sunset/sunrise' effect otherwise you may be disappointed. It is a good quality product that is nicely put together. It's not very intuitive and I have found it a bit frustrating to use. The various buttons and controls are placed on top and on each side of the lamp making it a bit difficult to figure out. You can't connect an external audio source to it. You can't schedule alarms for weekdays only. First of all, this lamp lacks many features you can find in much cheaper products. The concept is good but there are some flaws if you plan on using it as your daily alarm. Interesting concept, but not sure it's for everybody.

Philips smartsleep manual