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Studies have shown that simulating sunlight may helpimprove sleep qualityoverall.

Person lying in bed and turning off digital alarm clock after awakening early

David-Prado / Getty Images

There are also potential benefits with morning-light exposure for anyone who hasseasonal affective disorderor a delayed sleep-phase syndrome.

I feel like this product improves my sleep cycle and makes me wake up more energized.

Homelabs Sunrise Alarm Clock

The Homelabs Sunrise Alarm Clock is one of the most affordable wake-up lights.

Philips SmartSleep Wakeup Light in white with packaging

Its not USB-rechargeable, but it does include a back-up battery.

Weve been using our Glow lights constantly since they arrived.

The interactions are so intuitivethey really are a joy to use, says one shopper.

Hatch Restore alarm clock with iPhone app

My wife is very sensitive to light, especially at night.

One reviewer writes: I bought this to replace my Phillips Wake-Up Light alarm.

This sunrise alarm clock offers 10 light intensities (up to 200 lux) and a snooze button.

Jall WakeUp Light Sunrise Alarm Clock

It doesnt have the nature sounds of the other clock nor companion-app connectivity or sunset simulation, however.

But at half the price, perhaps its simplicity is just what you need.

As a perk, the Movsou includes a charging port for your phone too.

Homelabs Sunrise Alarm Clock in yellow on white background

One MoMA reviewer writes: This is my favorite alarm clock Ive ever had.

Its absolutely gorgeous, and using the app to control it is not only dead simple, its delightful.

White Casper Glow Light on black table

iHome Zenergy Dream Mini iZBT7 alarm clock and sound machine on white background

Philips SmartSleep WakeUp Light HF355 in white with packaging

Loftie alarm clock in black

Lumie Bodyclock Shine 300 Alarm Clock in light grey

Movsou Sunrise Alarm Clock WakeUp Light in blue

Chirp Alarm Clock and Lamp in white marble and gold

Philips SmartSleep Connected Sleep and WakeUp Light HF3670 in white with orange light