Tired all day. Wide awake at night?

Poor sleep can affect your energy, focus, mood and recovery. And when you’re not sleeping well, the next day can feel harder than it should.

Sleep Prep is a nightly drink designed to help you prepare for a better night’s sleep, so you can wake ready for the day ahead.

You are not alone

1 in 5

Almost 1 in 5 people in the UK aren’t getting enough sleep.

37%

Cite work as reducing the amount of control they feel they have over their sleep.

7-9 hours

Most adults need around 7-9 hours of sleep per night

  • 4.5/5 stars on Trustpilot
  • 30 years of experience
  • Made in the UK
  • No sugar
  • Great taste
  • Easily dissolvable
“We didn’t want to create something that simply knocked you out. We wanted a formula you could take every night as part of your wind-down, helping you prepare for sleep and wake ready for the day ahead.”
Wendy Rogers Head of Technical, Reflex Nutrition

Signs and symptoms of sleep problems

Sleep problems don't always mean lying awake all night. You might

Lie awake for long periods at night.

This can train your brain to associate bed with frustration and alertness rather than rest.

Wake up several times during the night.

This disrupts that much needed REM sleep and makes your sleep less restorative.

Wake earlier than planned and struggle to get back to sleep.

This can be a sign of terminal insomnia or sleep maintenance insomnia.

What makes REFLEX great

4.5/5 stars

Thousands of verified Trustpilot reviews across the range

Top ingredients

Every ingredient is listed in the dose. Simple and transparent.

30+ years

Making sports nutrition since 1996. UK based and made.

Sleep Prep

An evening hot chocolate drink to support quality sleep without sedation, so your body can recover while you rest.

£19.95

CHOOSE BUNDLE

Sleep Prep is most effective after 3 months of nightly use. The three-month routine is built for that.*

Or express checkout with

How much sleep do you actually need?

How often is sleep a struggle?

How many adults will be taking it?

Ideal if you

·       Lie awake for long periods at night.

·       Wake up several times during the night.

·       Wake earlier than planned 

Ingredients

Buttermilk Powder (Milk), Micellar Casein (Milk), Isomaltulose, Cocoa Powder, Magnesium Citrate, Chicory Root Fibre, Flavourings, Milk, Protein Hydrolysate (Lactium®), KSM-66® Ashwagandha Root Extract (Withania somnifera) [Milk], Lemon Balm Leaf Extract (Melissa officinalis L., Maltodextrin), Sea Salt, Cinnamon Bark Extract (Cinnamomum cassia), Xanthan gum, Sweetener (Sucralose), Bacillus coagulans (LactoSpore®), Anti-caking Agent (Silicon Dioxide), Black Pepper Extract (BioPerine®), Protected Lactic Acid Bacteria (Bifidobacterium bifidum, Lactobacillus acidophilus, Lactobacillus rhamnosus).


May contain traces of gluten (wheat, oat, barley) and/or egg.

How to use

Mix one 10g scoop with 100 ml of hot water, stir well, and drink around 1 hour before bed.

This product is a food supplement and  should be used in conjunction with a varied and balanced diet and a healthy lifestyle,  not as a substitute for such. Do not exceed the stated daily dose (10 g). Not intended for use by anyone under 18. Keep out of reach of young children.

Benefits

• Supports switching off before bed.
• Easily settle into sleep.
• Supports deeper, more consistent sleep.
• Built for nightly use alongside training.

Why sleep supplements aren't one-size-fits-all

You may have tried it all and yet you still can’t sleep…

Consistency matters

Sleep isn't something you fix with one good night. Building better sleep habits takes time, which is why anything you use should fit easily into your evening.

Enjoy your solution

If taking something feels like another job on your list, it's unlikely to become a habit. Taste, format and convenience matter.

Reduce hassle

If your sleep supplementation stack includes 6 separate tablets then convenience is out the window. The best solutions are those that work on a multilevel behind the scenes.

What people say

Real results. Real people.

When is poor sleep a problem?

A bad night happens. Life gets in the way. Longer-term sleep problems can make daily tasks feel harder. They may affect your mood, appetite, relationships and social life.

This is because sleep gives your mind and body time to rest, recover and repair. Getting enough sleep can support your mood, energy, immune system and overall health.

Not getting enough sleep is sometimes called sleep deprivation or sleeplessness.

Effects of poor sleep on mental and physical health

When you’re not getting enough good-quality sleep, you feel it. Energy drops. Focus gets harder. Your mood can take a hit. And the things you normally handle with ease can feel like more work.

Sleep also plays an important role in recovery, immune function and how well you manage the demands of everyday life.

Over time, poor sleep can affect:

  • Focus and concentration, making it harder to stay sharp throughout the day
  • Memory and mental performance, giving your brain less time to reset and recover
  • Energy levels, leaving you reaching for another coffee when you’d rather not
  • Stress management, making everyday pressure harder to handle
  • Recovery and immune function, both important when you want to keep training and living well

And it can become a cycle. Poor sleep can leave you feeling less able to cope the next day, which can make it harder to switch off at night.

Good sleep gives your mind and body the time they need to recover, reset and get ready for what’s next.

Common causes of sleep problems and solutions

Stress, worry and anxiety

When you feel stressed or anxious, your body may feel more alert. Your mind may also be full of worrying thoughts.

What can help

Monitor your job, commute, and work environment: 15% of UK workers cite not having to commute long distances helps them get the right amount of sleep. Check whether you should be monitoring emails or work phone calls outside of work hours. Write down your worries so they are out of your head and on paper, this can help to unclutter your mind.

Your bedroom or surroundings

Noise, light, being too hot or cold, or an uncomfortable bed can make it harder to sleep.

What can help

Your bedroom should be a peaceful place for rest and sleep. Keep your bedroom dark, quiet and cool when you’re trying to sleep.

What can help

Your bedroom should be a peaceful place for rest and sleep. Keep your bedroom dark, quiet and cool when you’re trying to sleep.

Getting older

As we get older, our sleep patterns can change. Some people may sleep less at night or doze during the day. Menopause or perimenopause can also affect your ability to fall asleep and stay asleep. Night sweats can make this even worse.

What can help

If you can’t sleep, don’t lie there worrying about it. Get up and do something you find relaxing until you feel sleepy again, then go back to bed. If you experience any of these symptoms you can also consult your GP for support.

Built for 60 minutes before bed, simple

Most supplements will ask you to take them right before bed. The extra water can cause you to go to the toilet and disrupt your sleep more. Sleep prep is designed for earlier. It is part of your wind down routine, so the sleep preparation starts before you hit the pillow. All the needed ingredients in one convenient small and tasty drink.

SLEEP PREP VS THE REST

Sleep Prep compared with CBD and Melatonin
Feature Sleep Prep CBD Melatonin
Available in the UK Yes Yes Prescription only
Made for nightly use Yes Varies Varies
Designed to support recovery Yes No No

You may not know

Frequently asked questions

Verified by internal technician

Some nutrients have authorised health claims related to normal psychological function, the nervous system and reduction of tiredness and fatigue. For example, magnesium contributes to normal psychological function and normal functioning of the nervous system.

Sleep Prep combines selected ingredients in a convenient evening drink designed to fit into your pre-bed wind-down.

Start with the fundamentals. Keep your sleep and wake times consistent, give yourself time to wind down, keep your bedroom comfortable and avoid caffeine late in the day. These are also among the practical steps recommended by the NHS.

Sleep Prep can sit alongside those habits as part of your evening routine.

There isn't a universal timeframe. Sleep can be affected by habits, stress, environment and other factors, so improving it can take time. The important thing is building habits you can maintain consistently.

Most healthy adults need around 7–9 hours of sleep per night, although individual needs vary.

Sleep Prep is a powdered evening drink designed to be taken as part of your pre-bed wind-down. It combines Magnesium, Ashwagandha and Lemon Balm leaf in one convenient serving.

Sleep Prep is designed to be taken around 45 minutes before bed, giving you a simple point in your evening to start winding down.

Start your journey

Give it three months

Sleep Prep is designed to be taken nightly. Most people who see a difference see it within three months, so that is the routine we'd start with.

Trial pack

Sleep Prep

15 servings

An evening hot chocolate drink to support quality sleep without sedation, so your body can recover while you rest.

£19.95

£1.33 / serving

Popular - 1 month supply

10% off
Sleep Prep month supply

A month of nightly Sleep Prep supply for a better switch off routine. 

£39.90 £35.91

Best value

15% off
Sleep prep value bundle

A great value pack for those who struggle with sleep on a daily basis. Cover your nightly routine and feel the difference. 

£59.85 £50.87

Sleep Prep is most effective after 3 months of nightly use. The three-month routine is built for that.*