Slumberful Sleep Support Review Summary
Iguazu Nutrition Slumberful has a very similar formula to Zhou Nutrition DRIFTOFF. The difference is that Iguazu Nutrition Slumberful contains more ingredients and the doses are a little higher in places. Overall, it is a superior supplement to DRIFTOFF. It provides a reasonable dose of theanine (although it could be higher) and a very generous serving of melatonin.
But we don’t think this stack is the best choice for anyone, whether they’re primarily looking for help getting to sleep, better quality sleep, or good value for money. Iguazu Nutrition Slumberful misses the mark on each count. Some ingredients do absolutely nothing, and the magnesium serving is downright laughable.
Where To Buy Iguazu Nutrition Slumberful Sleep Support
Slumberful can be bought from Amazon. We can’t find an independent website for Iquazu Nutrition. Not a good sign.
Detailed Iquazu Nutrition Slumberful Review
Slumberful is a natural sleep support supplement from Iguazu Nutrition. These guys aren’t very well known. We couldn’t even find an independent website, which is never a good sign. At present, their Amazon store lists just 2 different products: Slumberful Sleep Support, and an apple cider vinegar supplement.
At first glance, then, they don’t look like a serious supplement manufacturing outfit. But we can’t go into this review with a closed mind.
What is Iguazu Nutrition Slumberful supposed to do?
Who is it designed for?
According to the manufacturers, Slumberful Sleep Support delivers the following key enhancements:
- Help getting to sleep quickly and effortlessly
- Promotes deep sleep
- Promotes lucid dreaming
- Reduced anxiety
That is a really great list of benefits. These are all things that we want to get from a natural sleep enhancer. Only a few members of our review team use sleep supplements, but they all use them for the same core reasons: reduced sleep latency, more deep, restful sleep, and enhanced REM cycles with more lucid dreams.
We just need to find out how much of this is true and how much is just the empty words of the sales team!
Lots of stacks out there claim to do all of these things, but less than 10% of them even come close to doing a fraction of what they promise.
So where does Iguazu Nutrition Slumberful stand?
Does it really work?
How effective is it compared to other, similar products on the market right now?
Is it safe? Will you get side effects while using Iguazu Nutrition Slumberful?
Find out by reading our detailed formula analysis below. We discuss ingredients, doses, and likely risks. If you finish the review and you think we’ve missed something important, let us know in the comments at the end. Please post any experiences you may have had with this stack in the comments – good or bad, we’d love to hear about it!
Iguazu Nutrition Slumberful Formula
Let’s check out the Iguazu Nutrition Slumberful formula:
Many of you will notice that this formula is very similar to other sleep supplements, some of which we have reviewed on this site.
In particular, it is strikingly similar to Zhou Nutrition’s DRIFTOFF, which we have reviewed in full here.
However, it is not a copycat. The formulators have clearly not just ripped off another stack; they have simply used the same sort of base ingredients as many other stacks and then augmented it slightly.
The end result, we’re happy to say, is an improvement on the norm.
If we think of DRIFTOFF as an ‘original’ form of this formula, then Slumberful is a significant improvement.
It contains more quality ingredients, and the doses are better in the places where it matters.
But there are still serious problems here. Quite a few of the ingredients do pretty much nothing for sleep quality.
- Great serving of melatonin
- Reasonable dose of theanine
There are definitely some notable selling points here.
For one thing, Iguazu Nutrition have included quite a sizable portion of melatonin in Slumberful.
Melatonin, as you all probably know, is a hormone produced in the human pineal gland. It is primarily responsible for regulating sleeping patterns. It has a direct and overriding influence on sleep onset, sleep duration, and the depth of that sleep. It is the hormone behind your circadian rhythm; the natural cycle that wakes you up in the morning and puts you to sleep at night.
With many hormones and neurotransmitters, supplementation is completely pointless. But thankfully with melatonin, supplementation has been shown to be highly effective for improving sleeping patterns.
For example, read this study which focused on elderly insomniacs. Researchers found that just 2mg of melatonin supplementation per evening “effectively induced sleep and improved perceived quality of sleep in patients with primary insomnia aged > or =55 years.”
Amazingly, the researchers went on to note that melatonin supplementation improved cognitive function: “Daytime psychomotor performance was not impaired and was consistently better with PRM compared with placebo.”
This cognitive enhancement was almost certainly due to improved sleeping patterns; melatonin is not in and of itself a nootropic!
We also get a good serving of theanine here.
Theanine is an excellent natural sleep aid. It reduces anxiety, brings about the onset of sleep, and promotes deep, heavy, truly restful sleep in all people – young and old, sick and healthy.
Importantly, theanine seems to be potent at reducing anxiety and promoting sleep without having any kind of sedative effect. It doesn’t make you drowsy, doesn’t leave you feeling intoxicated, and doesn’t impair your judgement in any way.
Studies showing good benefits from theanine have used 200-400mg per evening. The 200mg dose we get in Slumberful is therefore sufficient, if the bare minimum for effects to be meaningful.
- Dead weight!
Despite the benefits laid out above, we don’t think we can seriously recommend this stack as one of the best around today.
That is solely down to the over-use of ineffective, unproven, and sub-standard ingredients.
The Slumberful formula is absolutely laden full of weak substances that have never been shown to improve sleep latency, quality, or duration in clinical settings.
Take Passionflower Extract, for example.
We see this substance coming up time and again, and we are yet to see a single good justification for its use in sleeping supplements. We have never seen a single trial, long-term study, or even a convincing anecdotal account where Passionflower Extract has had a meaningful impact on sleep.
Another culprit here is GABA, although for slightly different reasons.
GABA is a neurotransmitter which makes you feel calm, happy, and at ease. It lowers your inhibitions, and drastically lowers anxiety.
But the problem is, consuming GABA orally doesn’t lead to more excitation of GABA receptors in the brain. GABA does not pass through the digestive process well, and it does not easily cross the blood brain barrier.
GABA does not work how many people assume it will work. We have never seen convincing proof that supplementation with GABA works how manufacturers and enthusiastic bloggers say it will. Until we do, we’ll stick to our conviction that it’s garbage.
Iguazu Nutrition Slumberful Side Effects
The ingredients used in this supplement are all thought to be generally safe for both short and long-term use.
They have all been widely used in herbal supplements for many years, and they rarely seem to cause any side effects whatsoever.
More importantly, they have all been studied under clinical observation for various reasons, and they are not thought to pose a serious risk to life or health.
However, there is an awful lot of dead weight in here. In taking Slumberful you are consuming a lot of herbal extracts and concentrates without getting anything in return.
You are exposing your body to more unusual substances for absolutely no reason.
As such, we deem this stack to have a higher than usual risk of causing side effects, purely because of the increased and COMPLETELY UNNECESSARY RISK of interactions with other supplements you may be taking.
In taking so many extra substances without any chance of increased benefits, you are also increasing your risk of having an allergic reaction for, again, ABSOLUTELY NO REASON!
That is why we hate dead weight.
However, the fact remains that the chances of side effects here look very low.
There are a few things that you need to remember. It is absolutely vital that you consider your own circumstances, do your own research, and always consult a qualified health professional before using these supplements.
There are a few things that you need to remember.
It is absolutely vital that you consider your own circumstances, do your own research, and always consult a qualified health professional before using these supplements.
Final Verdict – Iguazu Nutrition Slumberful Sleep Support – Should You Buy It?
On the whole, this doesn’t look like a bad sleep aid at all.
It provides a good dose of theanine (although it could be twice this big), and a very generous serving of melatonin.
Yet we still wouldn’t recommend this stack to anyone, no matter what it is that you’re looking for. It isn’t terrible; it just isn’t competitive in today’s market. It certainly doesn’t come close to ranking as one of our top rated sleep supplements.
The sheer amount of dead weight in Slumberful is enough to put it us. We hate dead weight for lots of reasons: wasted money, consuming more substances than is absolutely necessary for results, and an elevated risk of unforeseen interactions to name a few.
Better stacks are out there, no doubt about it.