There are various foods and drinks that you can consume which seem to have some effect on sleeping and dreaming.
Don't go overboard with the consumption of any of these, as overdosing could have nasty effects (well, milk should be safe unless you are allergic). The authors in no way encourage the use of legal or illegal drugs.
The amino acid tryptophan, which can be found in warm milk amongst other sources, is a precursor for the hormone serotonin, and has been proven to help you fall asleep.
Vitamin B6 and others of the B group are important for neuronal functions.
Melatonin is a hormone with neuronal effects. It is produced by the pineal gland in darkness and is suppressed by blue light. Wearing blue-blocking sunglasses or avoiding bright light in general the hours before bedtime maximizes night-time melatonin secretion.
5-HTP or L-5-HTP is a supplement that is related to serotonin, which some claim has induced lucid dreaming on approximately half the nights it is taken.
Caffeine is useful in WILD techniques, as it helps the mind stay focused and think vividly. Please notice that caffeine is an addictive substance and may have negative effects on your health.
An Amino Acid Blend made up of 2000mg L-aspartic acid, 4000mg L-glutamine, and 300mg L-theanine can substantially increase your odds of having a Lucid Dream.
Galantamine - acetylcholinesterase inhibitors extract from plants such as Lycoris radiata (Red Spider Lily) or from chemical synthesis. Works best when taken together with choline and/or alpha-GPC.
Some people who practice Lucid dream (LD) or Out of body experience (OBE) use Galantamine to increase their odds to achieve LD or OBE. By taking small amount of Galantamine (around 4 to 8 mg) after 5 to 6 hours of deep sleep and practice the induction technique such as meditation, MILD or WILD many people report more success with Galantamine.
There also report that taking Galantamine without proper induction technique will not lead to LD or OBE but will result in only a vivid dream instead. It should also be noted that due to a long half life Galantamine will stay in the body for a period of up to and over 48 hours, as such it is advisable to space out the use of Galantamine over a period of three days so that the body does not build a resistance to the drug ruining its effectiveness.
Some people report mixing Galantamine with other Nootropic can enhance the degree of lucidity but this is still controversial since some mixtures may work for some people, but lead to failure for others.
Nutmeg - contains myristicin a deliriant.
There are various gadgets you can use to become lucid easily. They generally detect when you are in the REM state and then provide a light and/or sound signal. This signal is supposed to be adjusted so that it doesn't wake you up but does enter your dream. The signal is then recognized as showing that you are dreaming, and you become lucid.
The most well-known device is the NovaDreamer from the Lucidity Institute. However, this product is no longer produced. Be sure to check for recommendations for devices from lucid dreaming forums.
A similar device is the DreamMaker. The DreamMaker works very similarly to the NovaDreamer but without the Dream Alarm feature, which worked to wake the dreamer in the middle of the REM state. This device comes with a mask, a circuit board with adjustable controls, the batteries needed to operate it, a short owner's manual, a lucid dreaming workbook, and the Stephen LaBerge book Exploring the World of Lucid Dreaming. The circuit board is supplied completely ready to use, but you have to insert the batteries and put the circuit board into the mask yourself.
An alternative is the Kvasar. The Kvasar costs about $20 in raw materials, but needs to be constructed by somebody skilled in electronics as it is not sold commercially. It can also be hard to operate.
Another do-it-yourself alternative to commercial dreaming masks is Nate True's Lucid Dream Mask, which does not bother with difficult-to-calibrate sensors and just uses a timer for flashing lights, and has (ostensibly) competitive results with all of the former gadgets.
The owners of Wellness Tools, who makes the DreamMaker, and Kvasar have not had friendly relations.
There are many programs for your computer that can assist with lucid dreaming. These can give out verbal cues while you sleep, or assist in doing your reality checks:
iLucid Dream for the iPhone. Dream journal, reality checks, induction techniques, binaural beats for deep sleep and much more!
Lightened Dream is available for Windows as freeware. It can be used as a dream journal and a dream-sign list. One of its more notable features is that you can have it play a voice or song each time you enter a REM sleep period.
DreamDoze A web application for Social Dream interpretation and dreams journal management
Gnaural is a multi-platform programmable binaural-beat generator. Gnaural is released as free software under the GNU General Public License.
Brainwave Generator is available for Windows. It works by playing binaural beats into your ears, changing your brainstate.
Reality Check is available for Windows. It works by appearing on your computer screen at random times to remind you to do a reality check.
SBaGen is available for Windows, MacOS X, and Linux. It works by playing binaural beats into your ears, changing your brainstate.
Neuro-Programmer is available for Windows. This is powerful software that creates binaural beats and can work in conjunction with special goggles to induce certain mental states.
LucidWeaver is available for mobile phones and PDA that support Java (J2ME). It includes a Dream alarm with sound cue which can be adjusted to a personal REM-sleep cycle for improving dream recall and lucidity training. Randomized reality tests can be set and it can be used as regular alarm clock.
Lucille 2.0 is an application to assist with doing reality checks. You Are Dreaming
Daldom a cross platform audio lucid dream induction software. Lucid Dreaming Assistant DOS software
Unexplainable Store Lucid Dreaming Brainwave Entrainment MP3
Sleep Check Reminder for Android.
iLucid for iOS (iPod, iPhone, iPad).
Sleep As Android is an Android sleep tracking app. It has a feature where it can play a sound file (by default, a soft voice that says "You're dreaming..." and echoes out) when it detects that the user is in a deep sleep.