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InteriorHealthReview 534

A morning grump tests the Wake-Up Light by Philips

I, a self-confessed morning grump, have always had trouble getting up. That's how I got the idea of testing a light alarm clock. At the moment, I wouldn't really trust an alarm clock like that. In this test report you will find out whether it does what it says and whether it will really help me optimise my sleep-wake rhythm.

My typical sleeping habits: Going to bed early and getting at least 8 or 9 hours sleep. In spite of this, I still wake up feeling exhausted and all my efforts to date to become a "happy" early bird have failed. My alarm clock up to now? My mobile phone! I have chosen the Phillips Wake-Up light as it is the top-seller among the light therapy lights. I will test this model for five days and hope to get up easier and generally feel better. And we're off!

The test object:

  • Wake-up Light HF3520
  • Wake-up Light HF3520
  • Wake-up Light HF3520
CHF 112.–
Philips Wake-up Light HF3520
The Wake-up Light simulates a natural sunrise, stimulating your body to wake up naturally.


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Day 1

My first time with the Wake-Up Light. Personally, I found installation fairly straightforward. You just need to invest a little time – as you do with any instructions. It took me about 20 minutes. However, despite the available demo-mode, I did worry a little whether the light alarm would really work the next morning. There are a number of ways of being woken up: By the sunrise mode, by one of 5 natural sounds or by the radio. I went for the combination of light and birdsong. On Monday morning, everything works to my satisfaction. And indeed: Waking up to sunlight followed by birdsong was really very pleasant. I did have some difficulty switching the alarm off. I first have to switch off the alarm function, then the light and then reset the alarm for the next day. But today I woke up more relaxed and refreshed.

Day 2

An even more gentle awakening. The dawn light is really pleasant and slowly gets brighter according to the time set by me. The birdsong then starts punctually at my programmed wake-up time. I do feel less exhausted than when waking up to my mobile. Pleasantly surprised, I get up more easily and with more energy. In addition, there is a snooze function that you can use. Directly touch the big light to get another 9 minutes in bed.

Day 3

Waking up was very pleasant today too. I still haven't been able to find a simple switch-off function though. That means I now deactivate the alarm every morning and then activate it again so I can be woken again the next morning. I switch the light off with the switch off button provided for that purpose (it switches itself off after 45 minutes). Those are two clicks too many for me in the morning.

Day 4

Yesterday, I went out for a meal with colleagues and did not get home until late. Normally that would mean a sleepy morning after. My mood darkens if I don't get at least 8 hours sleep. The Wake-Up Light woke me gently again. I was not jolted from a deep sleep. The light allows me to wake up gently. That means my morning starts calmer and more relaxed. A good start to the day... despite sparkling wine the previous evening.

Day 5

Oops, I forget to set the alarm the previous evening. But my body has got used to the new wake-up routine and I actually open my eyes this morning without the alarm going off. However, I still feel a bit groggier than the last few days because of the lack of simulated dawn sunlight. So this morning I have decided to definitely continue with a light therapy alarm.

My personal summary


  • I wake up with more energy
  • I find it easier to get up due to the simulated sunrise.
  • The natural sounds get me up and running faster and in a more relaxed way.
  • My new wake-up time and the more relaxed wake-ups are priceless.
  • I am in a better mood in the mornings and I start the day more relaxed.
  • I like the design
  • I could also use the alarm in reverse as a sleep aid.
  • The alarm can also be used as a light. I don't really need a bedside lamp anymore.


  • You quickly get used to this comfortable, relaxing way of waking up. That is why I don't know how long this positive effect will last for. However, I am convinced that it will change my waking up in the long term.


  • Personally, I find the alarm clock too big. To begin with I struggled with positioning it next to my bed/on my bedside table.
  • The switch-off function in the morning could be improved with, for example, just a simple click (like the snooze function).
  • Two wake-up times can be set. There is no possibility of selecting wake-up days so that the wake-up function switches off at weekends and switches back on on Mondays.

This takes you to the whole light alarm range.

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Stephanie Tschan, Zurich

  • Category Sourcing Manager
Meine Rolle als Product Manager für Wohnaccessoires erlaubt es mir, mich in einer fröhlich bunten Welt aus Raumdüften, Aufbewahrung und Wanddekoration auszutoben. Mein Herz schlägt für meinen Job, und nebst meinen Interessen für Interior Design und Mode, liebe ich den Sommer und die italienische Lebensart.


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User info

Ich verwende die Radiofunktion als Wecker und schalte den Wecker jeweils mit dem Radio-Knopf aus am Morgen. Evtl. klappt das ja auch bei der normalen Weckfunktion.

User Anonymous

Kurze Frage: Der Wecker bleibt dann, trotz abschalten über den Radio-Knopf, für den nächsten Morgen aktiv?

User info

Ja, auf jeden Fall. Merke ich jeweils meistens am Samstag Morgen, wenn er eigentlich nicht mehr aktiv sein sollte.

User Anonymous

Cool, das werde ich mal testen. Danke dir! :D

User traumwanderin

Mich würds jetzt nach einem Jahr mal Intressieren ob du den immer noch brauchst und seine Funktionen dich noch immer so dermassen überzeugen können?