3.5: web.wealth/dreammachines:

cheapest dream machine is
$129.00 Sirius by Mindplace

When I was in college
in the late '80s
I built something called a Dreamachine
to help me relax in stressful times.
It was invented decades earlier by
Brion Gysin  and Ian Sommerville.

The Dreamachine is a somewhat
primitive antecedent
of the Sirius and other devices like it.
So I hunted around for a flicker rig
and found that the technology had
come a good way along in 20 years.
This is the sort of little machine
that you will have to try for yourself.
Some people find that the
flickering lights make them feel
uneasy or even nauseous,
and if you have any seizure disorder
then this type of thing should be avoided at all costs.
But with those caveats, if this thing does it for you,
you will never want to be without it.
The features are really good considering
that this is basically the lowest priced instrument
you will find of its kind.
What I really purchased this box for
was the ability it offers users to set our own frequencies.
I like to be able to find a frequency that feels good to me
and just leave it there for a while.
The lower frequency ranges actually settle my mind into
sleep-oriented brain wave patterns
and help empty my head of the sort of ruminative thoughts
that keep me from getting the sleep I need.
-- James J. Pyke "Pajkossy" 2009

. I was first exposed to a dream machine by
psychologists who were testing me for epilepsy
(because I convulsed after passing out
during a medical procedure).
. the strobe light they used was very bright,
and they would adjust the strobe frequency
until it showed on my EEG
that I was getting alpha wave spikes .
. it caused me to see vivid dreams while awake!
I saw a neon-intense version of a flag
with green and red checkers,
and the letter K floating above it .
. I was so in love, and here it is,
but at $129, I'm worried about the durability .