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The Best Nighttime Fat Burner
Review’s & Buyer’s Guide

Supplements Considered 35
Hours of Research 192
of Research
Reviews Examined 92
Experts Interviewed 8
Tyler Sellers
Published by Tyler Sellers
Fact checked by Donald Christman, BHSc FACT CHECKED
Last updated: November 27, 2021

Fat burning supplements are a hot topic in the health and fitness world right now, and I regularly encounter people that either love them or simply despise them. And I can completely understand why so many people think they are magic pills with no actual magic.

We’ve looked into conventional fat burners in an article for men and another geared for women, but I also did some extensive research into some of reportedly the best nighttime fat burners. There were a lot of useless products as expected, but I did find some that had very positive reviews.

But always jumping to that conclusion is not always fair, because there are some nutritional supplements that actually work well.

So I dug deeper, did some intensive testing on about 35 products, and I have all the results of the best nighttime fat burner for you here.

Our Best Nighttime Fat Burners (2021 Updated)

1 - Lean PM (Editor's Choice)

lean pm night time fat burner

This fat burner was recommended to me by a colleague at the gym where I work, but before I went to test it, I had a look at the online Lean PM reviews.

In quite a few fitness forums and Facebook groups, I found a lot of people saying it worked well as a sleep aid, mainly due to the 5 mg of melatonin, the most impressive on this list of best nighttime fat burners.

There were also positive comments about its increased fat burning ability. Combined with a healthy diet and workout routine, it does seem to help a lot of people in burning fat. You can watch this video review:

  • Vitamin B6: 10mg
  • Magnesium: 150mg
  • L-Theanine: 200mg
  • Claims to promote better sleep cycles from REM to deep sleep
  • Contains proven fat burning ingredients and metabolism boosters
  • Suppresses your appetite, so you don’t wake hungry
  • Added vitamin B6 and magnesium
  • A higher dose of magnesium would be good

Personally, I found that it did help suppress my appetite (possibly because of the green tea content), so I didn’t feel hungry while going for my morning run before breakfast. The only downside I found is that it doesn’t give you 100% of your daily magnesium needs, which would be a nice bonus.

2 - PhenQ


When setting on a fat-burning journey, it’s always better to be covered from different angles: to find a solution that will activate your metabolism, boost energy, yet not make you lose any sleep over it - in a literal way.

And PhenQ does seem to tick all the boxes.

It contains a unique blend of ingredients that promote weight loss, suppress your appetite, increase energy levels but still do not give you any jitters or insomnia, according to hundreds of customers’ reviews.

Its famous formula contains a great ratio of capsimax powder, chromium picolinate, and caffeine and comes in a bottle of 60 capsules.

  • Calcium carbonate: 230mg
  • Chromium Picolinate: 80mcg
  • L-Carnitine fumarate: 150mg
  • Burning fat through thermogenesis
  • Improving your energy and mood without sleep disruptions
  • Money-back guarantee
  • It’s not stimulant-free, so better not take it with your coffee close to bedtime to avoid any possible side effects

It won’t disrupt your sleep as long as you don’t use it with other stimulants.

3 - Sheer Shred PM

Sheer Shred PM fat burner

Another product that promotes being an effective fat loss supplement is Sheer Shred, and again, the focus is on boosting your metabolism while you rest.

One of the ingredients that stood out for me was the kidney bean extract, which has shown to be effective at delaying digestion of carbs, which limits the number of calories you absorb. Another one is L theanine which aids in restful sleep.

A lot of online reviews highlighted that this fat burner didn’t just promote better sleep cycles, but also made people fall asleep faster.

  • Ginkgo Biloba: 70mg
  • Melatonin: 100mg
  • Lavender: 100mg
  • Contains white kidney bean extract to slow down carb digestion
  • Doesn’t hide behind a proprietary formula
  • Promotes better REM and deep sleep cycle through melatonin and lavender extract
  • Proven natural ingredients that can help with some bonus fat burning
  • A higher dose of melatonin would be better

Personally, I would have liked to have seen a slightly higher dose of melatonin, and I wouldn’t rate it as the best nighttime appetite suppressant. If that’s what you need, then option 1 above is the better choice.

I have to point out the kidney bean extract and l theanine content though, they're some of the finest ingredients for an effective nighttime fat burner.

4 - T6 Star6urn PM

T6 Star6urn PM Fat Burner

This overnight fat burner from T6 was the first one I found with garcinia cambogia, which has a great track record of working as an effective fat burner.

I personally found it worked pretty well as a sleep aid, mostly from the point of view that I got to sleep pretty fast.

I found quite a few athletes mentioned in forums that they thought it was the best nighttime recovery supplement, especially on high-intensity workout days.

  • Magnesium: 30mg
  • Green Coffee: 250mg
  • Melatonin: 5mg
  • Good to see garcinia cambogia on the list with proven fat burning capability
  • Provides some magnesium to help with muscle relaxation
  • Lots of reviews say that it works well as a sleep aid
  • Not stimulating despite containing green coffee bean extract
  • There’s really no need to put fancy names on natural products

I’m not sure I would go that far, but the added magnesium does help with muscle relaxation, which can help with recovery.

With all the good things to say, I did find it a bit annoying that the company tries to market simple and natural fat burning ingredients under fancy names like KSM-66 and InnoSlim.

Just keep it honest when it comes to fat burning products.

5 - Naturewise Nighttime Slim

Naturewise Nighttime Slim Fat Burner

Naturewise is my next recommended nighttime fat burner pill, which does balance the sleep aid and fat burning ability quite well.

While I wasn’t able to prove or measure its fat burning ability, the company claims that it will help you burn about 116 kcal while sleeping.

From the reviews I looked into, there were two common highlights of this fat burner. First, many people said they wouldn’t wake up hungry, which helped them increase their fasting periods that little bit more.

  • Slimming blend: 400mg
  • Relaxation Blend: 355mg
  • Claims to help burn an extra 116 kcal while you sleep
  • Works well to suppress appetite
  • Doesn’t cause an overly hot feeling
  • Free from most common allergens
  • Hides behind a proprietary blend

Secondly, they didn’t tend to get that hot feeling that some other fat burning products can cause. The only real downside is that the company hides behind a proprietary blend, so you don’t really know how much of each ingredient you’re getting.

6 - Havasu Night Time Weight Loss Pills

Havasu Night Time Fat buner Weight Loss Pills

Havasu was a company that I wasn’t really familiar with, so I decided to do some extra research and talk to a dietician about them. It turns out, they are actually a very reputable maker of supplements.

This fat burning one is actually rather simple when it comes to the ingredients, but the company does keep the exact amounts a secret.

I tried it for 2 weeks and would agree with many online reviews that it does help with sleeping, even if there is noise around your home.

  • Vitamin D3: 30mcg
  • Rest & Reset Blend: 500mg
  • Fat burning through simple and proven ingredients
  • Contains the hormone melatonin to make it easier to get to sleep
  • Limits nighttime food cravings
  • You only need to take one pill
  • Another brand that has a proprietary blend

While I never really get cravings for snacks, quite a few comments mentioned that it does seem to suppress their appetite.

7 - Modern Man PM Fat Burner

Modern Man PM Fat Burner

As the name suggests, this is one of those fat burning supplements that is specifically designed for men.

This means the dosage is higher than what women need, but for men, it will contain everything important in the right quantity.

Personally, I didn’t find that taking the fat burner before bedtime made me get to sleep quicker, but I did find that I had a more relaxing night feeling more recovered in the morning.

  • Glycine: 500mg
  • Melatonin: 5mg
  • L-Theanine: 200mg
  • Specifically designed for men to boost testosterone
  • Contains ashwagandha which helps with muscle recovery
  • No outrageous claims of massive weight loss
  • Claims to reduce the stress hormone cortisol
  • Doesn’t seem to work as well for getting you to sleep

Some people said they used sleep monitoring apps and that they did measure a better cycle between REM and deep sleep. A few reviewers also pointed out that it worked well to reduce stress levels after a busy day at work. Overall, a pretty good option.

8 - RevBurn

RevBurn Fat Burner

So, we’ve covered a night time fat loss product designed for men, now it’s time to list one for women, and that’s exactly what RevBurn has done.

The dosage of the active ingredients will be lower, and the ingredients were chosen as they work best to burn fat for women.

One thing I saw in a lot of the reviews is that many people said it worked well as an appetite suppressant thus resulted to significant fat loss.

It also contains natural ingredients that improve sleep cycles and relaxation. It also boosts your metabolism to maximize the fat burning effects.

  • Energy & Focus Blend: 450mg
  • Thermogenesis Blend: 40mg
  • Specifically formulated for women
  • Many positive comments about appetite suppression
  • Promotes deep sleep
  • Makes a good combination with the company’s day time fat burner
  • Proprietary blend hides the exact ingredient amounts

Some users reported to have headaches when waking up after taking this supplement. Try and see it for yourself.

9 - BPI Night Burn

BPI Night Burn

Night Burn is the last night time fat burner product on my top recommendations list, and it is one of the more popular options available.

Many users report that it works pretty well as a sleep aid to get a more relaxed and restful sleep.

For fat loss, it seems to work best when taken during a fasting period, so try to not eat too late in the evening to get the best results. You can also save some money by ordering the bulk container.

  • Good source of vitamin D
  • Positive reports of better REM and deep sleep
  • Targets fat storage well, especially during fasting periods
  • Available in bulk containers to save some cash
  • Another hidden proprietary blend

However, I personally found that the recommended dose of one pill wasn’t quite enough, so keep that in mind when you compare prices to other options above.

Nighttime Fat Burner Benefits

Nighttime Fat Burner Benefits

The obvious benefit of these fat loss supplements is that they aim to help you lose some weight and burn fat while you rest. But there are a few other benefits that you can experience.

1. Promote Better Sleep Cycles

All of the above products work as a sleep aid in that they will help you fall asleep faster and get into a better and more consistent cycle. Whether you have a lack of sleep due to stress levels or noise at home, this is one of the top reasons to consider taking them. (1)

See our article on the best time to take fat burners.

2. Don’t Wake Up Hungry

Some of these supplements will work quite well to regulate your blood sugar and keep you feeling full for longer. You’ll avoid food cravings and the need for a huge breakfast.

3. Cortisol Reduction

Cortisol is a hormone that is directly linked to stress levels. (2) If you have a busy personal and professional life, then cortisol can interfere with your sleep. Any reduction will help you feel more rested.

4. Thermogenic Effects

One way to lose weight without exercising is through thermogenic, metabolic effects. Essentially, they raise your body temperature slightly, and this is achieved by burning more energy. Fat loss is achieved faster through thermogenesis.

Here are the thermogenic ingredients to look for in any fat burner.

5. Boost Those Growth Hormones

Some of the above supplements will also help with muscle recovery by increasing testosterone and, indirectly, growth hormone levels. This can give you that small edge to bulk up more.

Do Nighttime Fat Burners Work?

people working out

Yes, nighttime fat burners can work to help you burn fat, as long as they are taken as part of a balanced diet with plenty of exercise.

They are not a magic pill that will allow you to snooze away unwanted fat, and if you come across such claims in advertising, then I suggest you keep well clear of it.

There are a lot of crap snake oil products out there, but the ones listed in the above nighttime fat burner reviews do work reasonably well.

If you want to burn away some extra calories and melt away some love handles, then you can get to your fat loss goals quicker by taking them regularly.

Any Side Effects?

No, for the most part, nighttime fat burners don’t have any side effects, unless you have some sort of allergies to the ingredients or you take too large a dose.

Unlike the daytime equivalents that are reliant on stimulants like caffeine from green tea extract, these types will actually have the exact opposite effect. They will make you slightly sleepy, so just keep that in mind.

Some of the products listed here have a form of green tea or green coffee bean extract ingredient, but they are mostly contained in minimal amounts to burn fat and not as a stimulant.

You don’t want to be falling asleep at your desk at work 😉

Other than that, fat burners may possibly cause diarrhea. For ladies, these fat burners may also affect your menstrual cycle.

Buyer's Guide - What To Look For

beans, magnesium, and berries | best nighttime fat supplements ingredients

When it comes to a good nighttime fat burner, there are some ingredients you want to look for on the labels. Here are the most common ones:

  • Green coffee bean extract: a natural ingredient that helps to suppress your appetite (3)
  • Raspberry ketones: promote faster breakdown of fatty tissue
  • L-carnitine: allows more fatty acids to be transported to muscle cells
  • Magnesium: Helps to relax muscles
  • White kidney bean extract: lowers how many carbs are digested

Whatever product you ultimately choose, just make sure you don’t see any hint of stimulants or energy boosters. While you do want to burn more energy, you don’t want your body to ingest more.

Although many people take L-carnitine as a way to speed up weight loss and fat burning, carnitine benefits include enhancing brain function, preventing muscle damage, regulating blood sugar, and increasing endurance as well.
- Rachael LinkRegistered Dietician

Other Resources You May Like:


best nightttime fat burners banner

When is the best time to take nighttime supplements?

The best time to take a nighttime fat burner is about 30 minutes before you go to bed. This gives your stomach some time to absorb the ingredients, and you can start winding down your brain as well.

How much nighttime fat burner should I take?

You should only take as much nighttime fat burner as is suggested on the label. Taking too much can cause some stomach upset and drowsiness.

I would suggest not taking more than 5 mg of melatonin, which is what you’ll get with most products above. Look into magnesium and l theanine content as well (sleep aid ingredients) as they may cause small digestive issues in some people.

How long do nighttime fat burners take to work?

Nighttime fat burners usually take about 30 minutes to start working. This does depend on your digestive system, but many of the ingredients are very easy and quick to absorb and start working their magic.

What helps burn fat while you sleep?

Raspberry ketones and L-carnitine help to burn some extra fat while you sleep. They do this by helping your body target fat for energy production and by transporting more fatty acids to your body cells.

Will I still be able to sleep well if I take nighttime fat burners?

Yes, you will still be able to sleep well if you take nighttime fat burners because the majority of them contain ingredients that help you get to and stay asleep with ease. With a better deep and REM cycle, you’ll feel much more rested in the mornings.

Can nighttime fat burners make you gain weight?

No, nighttime fat burners cannot make you gain weight because they will generally support calorie and fat burning. If you do notice some extra pounds on the scales, then you’ll need to look at some other aspects of your lifestyle to burn fat.

Are nighttime fat burners dangerous?

No, nighttime fat burners are not dangerous, as long as you don’t take too many and stick to taking them at home before you go to bed. They can make you feel a little drowsy, so you wouldn’t want that to happen while you’re at work or driving.

Can I take nighttime fat burners if I’m also taking daytime fat burners?

Yes, you can take nighttime fat burners if you’re also taking daytime fat burners.

There are actually quite a few products available that are designed to complement each other to maximize your weight loss and burn fat.

When coupled with a healthy diet and regular exercise, supplements can really help you get to your goals a lot quicker.

The top nighttime fat burner that stood out above all the products reviewed is LeanPM.  It has a decent amount of melatonin helping my sleep cycle, plus added vitamin B6 and magnesium.

Let's not forget that it has also proven to be very effective at the fat-burning process, speeding up the metabolism and the weight loss journey altogether.

Give this product a try and let us know about your experience.

Our #1 Best Nighttime Fat Burner

Lean PM

lean pm night time fat burner
Ingredient Quality
Overall Score 5.0
  • Claims to promote better sleep cycles from REM to deep sleep
  • Contains proven fat burning ingredients and metabolism boosters
  • Suppresses your appetite, so you don’t wake hungry
  • Added vitamin B6 and magnesium
  • A higher dose of magnesium would be good

About the author

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14 thoughts on “The Best Nighttime Fat Burner
Review’s & Buyer’s Guide

  1. Surprised that Bedtime Burn reviews aren’t included here since it’s one of the most recommended ones. Still, great additional suggestions!

  2. I really like this stuff! To be honest it is my first. I was hesitant about taking this because I’m not a pill person but hey there’s a bikini with my name on it that I will be in!! I am losing and shedding those extra curves on these! I don’t have any issues with side effects, my cravings at night are not as intense as prior to taking this pill and I sleep a whole lot better than ever! Thank you Isaac for the thoughts.

  3. After a few days of using this product, I can say that it works pretty well! If it were not for the accidental access to your blog, Isaac, I wouldn’t have known about these products. To put things in perspective, I haven’t been having as many cravings, whereas I constantly have something in my mouth before. And I can have something small in the morning like a small bowl of fruit or two hard boiled eggs and feel completely satisfied for hours! I sleep so well with this stuff also. I have a crazy schedule and stress eating is so damn real for me, but this has truly helped and I am so thankful for that!

  4. I’ve probably use this product for about 8wks now after having introduced to it in Isaac’s post. And I am pretty much done with my 1st bottle. I have noticed some changes in my weight. And let’s be honest, I could be more active and gym involved and actually could have lost some more! But “stay at home dad” you know how that goes in this society. I have lost about 5 pounds and honestly I take 1 pill at night or sometimes 2. I’m not really sure on the directions because it says 1 thing on the bottle and another on here. I don’t notice any changes in my sleep. I do have a bad case of insomnia so I just take a melatonin along with it. The pills aren’t too big and easy to swallow. Glad to discover this!

  5. So it has been a while now after purchasing this with the blessing of Isaac’s words and this is what I experienced so far. I sleep like a baby and wake up refreshed not sluggish. Take 1 hour before I want to fall asleep. I have experienced weight loss, but I am following a nutrition plan to couple this with and start out walking 4 miles every morning during weekdays, combined with a complete exercise gears. After work out and by the end of day I have not noticed I walked 8000-10000 steps! I have lung complications and a mild case of asthma. So I need to take inhaled steroids. I have tried everything and had considered surgery. These were my last ditch efforts as I could never lose more than 5 pounds total which would go up and down and fluctuate so bad. I have tried other ways to reduce my extra curves and you name it, even a medical weight loss plan. All super strict following and exercising. Nothing more than 5 pounds either way. I am not a doctor, but this definitely works for my body! Love this product and am reordering once I am out of stock. Will continue with the combo till I hit my goal!! Hope to keep you posted.

  6. I’ve only been on these 4 days. It took me a while to purchase as I was having doubts, until I stumbled upon Isaac’s post. I’m not sure about losing weight yet but I have noticed that I’m not bloated in the morning and my stomach has been flatter. It’s not like a diuretic or anything. I’m not sure how it works. My sleep! However, it has never been this way ever since I can remember. It has been amazing! I have so much trouble sleeping in past. I would sometimes take up sleeping pills at night to help me sleep but to no avail. But even then I would wake up 2 or 3 hours later. With this, I take it and I am passed out ALL night! Like magic! I do not wake up groggy either as I did with my previous pills. They are easy to swallow, and have no taste. I am now a fan of your for sure! Hope to learn more from you Isaac.

  7. First, I would like to say thank you Isaac for taking the effort in sharing your thoughts. Okay. This product works great. But first, let’s be honest with ourselves guys, there is NO such thing as MAGIC PILLS. Nothing will work for you if you don’t make a slight lifestyle adjustment. That’s the reality. I have been taking these pills for the last 3 months and I definitely love it. It started a little slow, because it takes time for your body to adjust, but ever since my sleep has been amazing. To make things a whole lot better, I have lost 10 pounds! I cannot believe it. It has helped me with my sleep quality, bloating, gas problems and has erased my constipation issues. I haven’t experienced any negative side effects per se so I hope you guys have not as well. I suggest that you eat a light dinner early and take the pill about an hour before bed. Be patient and watch the magic unfold. To better sleep for us!

  8. A little background about myself, I am a heavy eater at night because I work a graveyard shift. That is not helping my weight loss journey at all that I could only have so much self-discipline. Before, I was starving come late nights and I would cave on my way home. Junk food is all that’s open that late so I would cave and go to sleep with a fat burger in my gut when I went to bed. I decided to give this a try since it had great words from you Sir Isaac. By the way, the first night I took it, it was a wonderful surprise. I haven’t had success with these types of pills before! Well, I took it the break before I left and I was NOT hungry and because I didn’t feel starved half to death. I was able to drive right past jack in the box and go straight home crawled in bed and had no issue falling asleep like I normally do! Holy! I feel like this is going to be the extra push I need to stick to my diet plan. Even when I woke up 6 hours after falling asleep, I still wasn’t hungry even though I’d normally want to rummage through my food for a snack. The desire just wasn’t there anymore and it was a really nice feeling. I am going to report back in the future to see if it added an extra boost in reducing these unwanted fat because it certainly helps everywhere else. It’s the first pill that seems to do just as I want it. Thank you.

  9. I have only used this product twice when I first read it here in Isaac’s, but they don’t stink like most pills. It’s also a 2-month supply. I have noticed my late night snacking has decreased. I usually take a prescription sleep aid that I will be taking with it tonight. I was hoping I would be able to substitute the product for my prescription. I will have to find out if it does help me in this matter. With all the positive thoughts from you Sir Robertson, I am excited about the results.

  10. I have been using these pills for about a month now since I found it out here, and I have to say I have never been satisfied with the results before from using a product! Due to my work schedule, I have to do my strenuous physical activities in the evening, which would often “work me up” and make it hard for me to go to bed. These pills help me relax and help me sleep better; not to mention, the extra boost to my metabolism does help. Since I have started using these pills in early this year, along with making sure to eat my veggies every day and exercise moderately, I have lost almost 15 pounds. Will definitely be buying these again once I ran out of stocks. Keep informing us Isaac.

  11. I have been a loyal reader of Sir Isaac and whenever I want to go through a change in my life, I often seek his posts for advice. Now, I bought this product because again, I want to change my life. Before, I was unable to fall asleep and stay asleep, lose weight and feel rested. After taking this product the first night, it didn’t make me feel tired. So I thought it’s not going to work, but the next thing I know, my alarm was going off. I actually slept the entire night! Amazing!! I don’t wake up feeling groggy or tired like other products I have used before! No restlessness and I’m sleeping every night like a baby! This will now be a part of my night regime from now on. I will be getting this again soon. I am still your fan Isaac. Thanks!

  12. Thanks for your review of different fat burners while sleeping. I was ready to buy this product on Amazon when I decided to look up reviews on YouTube. I’m delighted I got your feedback. I’m going to buy it today.

  13. This is very helpful post. I visit this website for any kind weight loss tips. I really appreciate the products that they recommend. You are doing very good job.

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