Sleep Stack
Relaxation Formula
Supplement Needs Sleep Stack 120 Caps - 120 Caps
Supplement Needs

Supplement Needs Sleep Stack 120 Caps

★★★★★
| 0 reviews |  60 Servings
£44.99 £45.99 £0.75/serving
Night-Time Wind Down Magnesium bisglycinate, Zinc methionine, P-5-P, L-Theanine, 5-HTP and B5 stacked for pre-bed routine.
Simple Bedtime Formula Built around Magnesium Bisglycinate
120 Caps, 30 Servings 120 caps at 4 per serving gives 30 daily nights - one month of pre-bed routine per tub.
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Size 120 Caps
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17,600+ Reviews
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Est. 2005
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Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle. If you are pregnant, breastfeeding, taking medication, or under medical supervision, consult your doctor before use. Do not exceed the recommended daily intake. Store out of reach of children.

120 Caps

Sleep Stack 120 Caps for Evening Routine and Overnight Recovery

Supplement Needs Sleep Stack is a comprehensive pre-bed wind-down formula built for trainees and athletes who want multi-pathway sleep support without melatonin. Each 2-capsule serving delivers 200mg of 5-HTP, 200mg of L-theanine, 500mg of magnesium bisglycinate, 30mg of zinc methionine, 50mg of P-5-P (active vitamin B6) and 500mg of pantothenic acid. The 120-cap bottle provides 60 servings - two months of daily use.

5-HTP at 200mg is the serotonin precursor researched for sleep-onset and mood support. L-theanine at 200mg is the green tea amino acid that promotes alpha brain wave activity and supports relaxation without sedation. Magnesium bisglycinate at 500mg delivers a meaningful chelated magnesium dose for muscle relaxation and the EFSA-authorised reduction of tiredness and fatigue claim. Zinc methionine at 30mg supports immune function and protein synthesis. P-5-P at 50mg is the active coenzyme form of vitamin B6 that bypasses the conversion step required by standard pyridoxine HCl, supporting neurotransmitter synthesis including the 5-HTP-to-serotonin pathway.

What separates Sleep Stack from a single-ingredient melatonin capsule is the multi-pathway approach. Melatonin targets the circadian system; this formula works on the neurotransmitter, muscle-relaxation and mineral-cofactor pathways simultaneously. Trainees who have tried melatonin and disliked the morning effect typically respond better to the 5-HTP/theanine/magnesium combination. Supplement Needs has built its reputation on evidence-based dosing and active-form selection.

Sleep Stack suits trainees who train in the evening and struggle to wind down, lifters in high-volume training blocks who want recovery-focused supplementation, athletes whose stress load disrupts sleep onset, and anyone who has tried melatonin and dislikes the morning grogginess. Not for trainees on prescribed SSRIs (5-HTP interaction risk), pregnant women, or those who prefer single-ingredient stacks.

Capsule alternative: Trained By JP Unwind 120 Caps delivers 300mg elemental magnesium with KSM-66 Ashwagandha and L-theanine for trainees who want adaptogenic support over the 5-HTP/B6 active-cofactor approach.

Key Benefits

Sleep Onset Support

5-HTP (200mg) serves as the direct precursor to serotonin and melatonin - the key hormones regulating sleep timing and quality. Supporting melatonin production through 5-HTP helps maintain natural sleep patterns.

Relaxation & Calm

L-Theanine (200mg) promotes alpha-wave brain activity and GABA production, creating a calm mental state that supports the transition to sleep without inducing drowsiness during waking hours.

Magnesium Nervous System Support

Magnesium Bisglycinate (500mg) in its most bioavailable form contributes to normal nervous system function and the reduction of tiredness and fatigue associated with poor sleep quality.

Active B6 & Zinc

Pyridoxal 5-Phosphate (P-5-P) and Zinc Methionine support neurotransmitter synthesis and hormonal balance, providing the cofactors needed for optimal serotonin and melatonin pathway function.

Frequently Asked Questions

What is Sleep Stack 120 Caps designed to support?

Sleep Stack 120 Caps is designed to support relaxation, bedtime routine and overnight recovery rather than acting like a quick fix. It usually makes the most sense for people who want a more structured evening routine around training and recovery.

When should I take Sleep Stack 120 Caps?

Products in this category are usually used in the later part of the day, close enough to bed that they still fit the wind-down routine. The better result comes from keeping the overall routine steady rather than taking the product at a slightly different minute each night.

Can I use Sleep Stack 120 Caps with other evening supplements?

Often yes, but it is sensible to check the full label first so you do not double up on ingredients that already appear elsewhere in the stack. Evening support products usually work best when the whole routine stays simple enough to repeat consistently.