What are some alternatives?
When comparing kitefaster.com Deep Sleep Sounds and Eight Smart Mattress, you can also consider the following products
A Soft Murmur - Ambient sounds to wash away distraction.
Cuddle Mattress - Hug your better half without the arm numbing
Noizio - Feeling that the noise of the big city is too much for you to bear?
Casper - Casper is changing the way the world sleeps
Rainy Mood - Rainy Mood is the world's most popular rain simulator. Sleep, study, and relax with the sound of rain.
Casper Sheets and Pillows - Sheets and pillows for everyone (by Casper)