Supplements for Improved Sleep - Centrapeak UK

Supplements for Improved Sleep

Premium ingredients in effective dosages.

Safe & effective ingredients to promote sleep

It's easy to take a good nights sleep for granted. Those that can drop off as soon as their head hits the pillow don't normally count themselves lucky. Unless you have experienced the debilitating effects of insomnia then you might not realise how valuable sleep is.

Sleep for Muscle Growth

Sleep has to be the most under appreciated in any athlete's armoury.

Academic studies have demonstrated that there is a direct colleration betwwen sleep and mucle growth [1]. We are not just talking about bodybuilding here, it's any athletic discpline.

Sleep is an anabolic state that allows muscular and cellular systems to rejunvenate and repair.

Growth hormone, or somatotropin, is released in surges throughout the day and night, but the largest releases occur when you are asleep. Sleep deprivation has been shown to suppress human growth hormone release.

If you are going to achieve your goals in the gym you need good quality sleep.

More than Melotonin?

The classic answer to sleep related problems is melatonin. Melatonin is the hormone responsible for sending you off to sleep. It therefore makes sense for manufacturers of supplements designed to promote sleep to include it, and without any notable exceptions, they do. However it might not make sense for you. Melatonin isn't perfect and it may potentially cause side effects such as headaches, sickness and irritability. Melatonin may be unsuitable for one or more of the following reasons;
  1. You probably already spend a lot on supplements
  2. You may not have acute insomnia
  3. Melatonin may have side effects
  4. Melatonin is only recommended for short term use up to 4 weeks
  5. You may be allergic to melatonin
  6. It is not suitable to take melatonin if you have certain medical conditions

More issues

There may be more reasons why you don't want to buy a dedicated sleep supplement. For a start, there is a limit to the amount of supplements a normal person can realistically buy. The best ones are expensive.

Do you really want to have to buy another supplement? The cost is prohibitive and some of them contain ingredients which may conflict with your ability to then take multivitamins or something else in your stack. Wouldn't it be better if you had a product in your stack that offered a wide range of benefits including improved sleep? Testosterone, mental wellbeing, libido, energy and sleep too.

The Answer? It's Centrapeak of course (you are on the Centrapeak site, of course we were going to say that). Let's explain why though, and walk through the science behind that statement.

Alternatives to Melatonin

Melatonin isn't the be all and end all of sleep supplementation though. There is a body of research on other popular natural supplement ingredients, and Centrapeak includes all of them in full clinical doses;

Phosphatidylserine & Sleep

Exercise, especially in the evenings, puts the body under stress. The body has a 'flight or flight' response, adrenalin increases and so do levels of the stress hormone cortisol. Elevated cortisol levels are not conducive to a sound sleep. Cortisol increases the activity in the HPA axis which can disrupt sleep cycles .[1] Phosphatidylserine has been shown in studies to reduce the cortisol response to acute exercise stress [2][3], and therefore improves sleep patterns which would otherwise be megatively affected by exercise.

Ashwagandha & Sleep

This Ayurvedic herb is a widely used supplement, and has many potential benefits. Improved sleep is on of those, but not one that is routinely associated with this ingredient. Ashwagandha has demonstrated an ability, to improve sleep quality, particularly for insomniacs with anxiety [4][5]. By increasing users resistance towards stress Ashwagandha can also improve self-assessed quality of life[6], reduce anxiety, and result in a better sleep.

Rhodiola Rosea & Sleep

Rhodiola rosea is a natural herb with a pedigree for improving sleep. In clinical studies rhodiola has repeatedly shown an ability to reduce fatigue [7][8]. The mechanism for improving sleep is, as we've seen with phosphatidylserine, down to the reduction in stress hormone cortisol. By reducing stress levels, improved sleep is not the only by-product. Improvements in quality of life, mood and wellbeing were also reported by participants in the studies.

Panax Ginseng & Sleep

Panax Ginsseng (sometimes known as Red Ginseng or Asian Ginseng) is another ingredient capable of influencing the hypothalamic-pituitary-adrenal axis which determines stress repsonse. Panax ginsng can help normalize the stress repsonse, so it will reduce the effects of excessive reaction to stress. Studies have shown it to have a beneficial effect on disturbed sleep [9]. Ginseng has also been shown to improve sleep by reducing the number of sleep/wake cycles in study participants.



You already know the conclusion we are going to draw here. Problems sleeping? Buy Centrapeak. Centrapeak is a supplement which isn't focussed on one element of your life, the benefits of the ingredients are widespread. Sleep is of course one, and the one which brought you here, but a host of mental and physical improvements come as part of the package. 

Ask yourself this, can over 8000 customers worldwide be wrong?

Order Centrapeak Today.



  1. Theresa M. Buckley, Alan F. Schatzberg. On the Interactions of the Hypothalamic-Pituitary-Adrenal (HPA) Axis and Sleep: Normal HPA Axis Activity and Circadian Rhythm, Exemplary Sleep Disorders. 1 May 2005
  2. Pistollato et al. Associations between Sleep, Cortisol Regulation, and Diet: Possible Implications for the Risk of Alzheimer Disease . 2016 Jul; 7(4): 679–689.
  3. P Monteleone, M Maj, L Beinat, M Natale, D Kemali. Blunting by chronic phosphatidylserine administration of the stress-induced activation of the hypothalamo-pituitary-adrenal axis in healthy men. 1992;42(4):385-8.
  4. Deepak Langade, Subodh Kanchi, Jaising Salve, Khokan Debnath, and Dhruv Ambegaokar. Efficacy and Safety of Ashwagandha (Withania somnifera) Root Extract in Insomnia and Anxiety: A Double-blind, Randomized, Placebo-controlled Study. 2019 Sep; 11(9): e5797.
  5. Raut et al. Exploratory study to evaluate tolerability, safety, and activity of Ashwagandha (Withania somnifera) in healthy volunteers. 2012 Jul;3(3):111-4.
  6. K Chandrasekhar, Jyoti Kapoor, Sridhar Anishetty. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. 2012 Jul;34(3):255-62
  7. Erik M Olsson, Bo von Schéele, Alexander G Panossian. A randomised, double-blind, placebo-controlled, parallel-group study of the standardised extract shr-5 of the roots of Rhodiola rosea in the treatment of subjects with stress-related fatigue. 2009 Feb;75(2):105-12.
  8. Yevgeniya Lekomtseva, Irina Zhukova, Anna Wacker. Rhodiola rosea in Subjects with Prolonged or Chronic Fatigue Symptoms: Results of an Open-Label Clinical Trial. 2017;24(1):46-52.
  9. Han et al. Effects of red ginseng extract on sleeping behaviors in human volunteers. 2013 Sep 16;149(2):597-9.
  10. Lee et al. Repeated Administration of Korea Red Ginseng Extract Increases Non-Rapid Eye Movement Sleep via GABAAergic Systems. 2012 Oct; 36(4): 403–410.. ttps://

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