Product Description
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THE #1 SUNDAY TIMES BESTSELLER
Until very recently, science had no answer to the question of why we sleep, or what good it served, or why its absence is so damaging to our health. Compared to the other basic drives in life - eating, drinking, and reproducing...
Read more
THE #1 SUNDAY TIMES BESTSELLER
Until very recently, science had no answer to the question of why we sleep, or what good it served, or why its absence is so damaging to our health. Compared to the other basic drives in life - eating, drinking, and reproducing - the purpose of sleep remained elusive.
Now, in this book, the first of its kind written by a scientific expert, Professor Matthew Walker explores twenty years of cutting-edge research to solve the mystery of why sleep matters.
Looking at creatures from across the animal kingdom as well as major human studies, Why We Sleep delves in to everything from what really happens during REM sleep to how caffeine and alcohol affect sleep and why our sleep patterns change across a lifetime, transforming our appreciation of the extraordinary phenomenon that safeguards our existence.
TLS, OBSERVER, SUNDAY TIMES, FT, GUARDIAN, DAILY MAIL AND EVENING STANDARD BOOKS OF THE YEAR 2017
SHIPPING INFORMATION:
At healf, we prioritise safe and fast shipping for all our customers. To achieve this, we collaborate with the best couriers, Royal Mail and DPD, choosing the one that best fits our criteria for your specific order.
FREE UK Standard Delivery: Enjoy free standard delivery on orders over £50. Delivery usually takes 2-3 working days.
Standard UK Delivery (£3.95): For orders under £50, we offer standard delivery at just £3.95. Delivery typically takes 2-3 working days.
Next Working Day Shipping (£5.95): Need your order urgently? Opt for our Next Working Day Shipping for only £5.95. Place your order before 12 pm to receive it the next working day.
RETURNS POLICY:
Our products are sold to make you feel healthy, and if for any reason this is not the case, we offer a hassle-free returns policy: We provide free 365 day UK returns for all our customers! To initiate a return, simply contact us at team@healf.com. We'll send you a return slip and arrange a collection if helpful. To be eligible for a return, the item must be unused, unopened, and in the same condition as when you received it, inside the original packaging. Once we receive and inspect your returned item, we'll notify you via email about the refund status. For international returns, unfortunately, we are unable to cover the cost. However, we work with various carriers and offer a self-post option to minimise return costs for customers shopping from outside the UK.
Why We Sleep by Matthew Walker
Sleep is one of the most important aspects of our life, health, and longevity and yet it is increasingly neglected in twenty-first-century society, with devastating consequences. In the first book of its kind, Professor Matthew Walker explores twenty years of cutting-edge sleep science.
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Product Description
Delivery & Returns
THE #1 SUNDAY TIMES BESTSELLER
Until very recently, science had no answer to the question of why we sleep, or what good it served, or why its absence is so damaging to our health. Compared to the other basic drives in life - eating, drinking, and reproducing...
Read more
THE #1 SUNDAY TIMES BESTSELLER
Until very recently, science had no answer to the question of why we sleep, or what good it served, or why its absence is so damaging to our health. Compared to the other basic drives in life - eating, drinking, and reproducing - the purpose of sleep remained elusive.
Now, in this book, the first of its kind written by a scientific expert, Professor Matthew Walker explores twenty years of cutting-edge research to solve the mystery of why sleep matters.
Looking at creatures from across the animal kingdom as well as major human studies, Why We Sleep delves in to everything from what really happens during REM sleep to how caffeine and alcohol affect sleep and why our sleep patterns change across a lifetime, transforming our appreciation of the extraordinary phenomenon that safeguards our existence.
TLS, OBSERVER, SUNDAY TIMES, FT, GUARDIAN, DAILY MAIL AND EVENING STANDARD BOOKS OF THE YEAR 2017
- FREE UK Standard Delivery on orders over £50 (2-3 working days)
- £3.95 - Standard UK Delivery 2-3 Working Days
- £5.95 - Next Working Day Shipping (for orders placed before 12pm)
Returns
Free 365 day UK returns policy.
Our products are sold to make you feel healthy. If any of them don’t then please contact us and we will look to refund you for them.
See our Return's Policy for more information.
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Frequently Asked Questions.
What is your shipping policy?
We use Royal Mail and DPD depending on who fits our criteria best for your order.
- FREE UK Standard Delivery on orders over £50 (2-3 working days)
- £3.95 - Standard UK Delivery 2-3 Working Day
- £5.95 - Next Working Day Shipping (for orders placed before 12pm)
How do I return my product?
We offer free 365 day UK returns to all of our customers! Simply contact us via team@healf.com and we will send you a return slip and arrange a collection if helpful.
Do you ship internationally?
Yes we do ship internationally! We put all international orders in tracked shipping to make sure it arrives safely and expect this to take 5-10 working days depending on the country, however occasionally international orders can get held up either in customs or due to courier delays (especially since Brexit) and so we ask that you wait up to a maximum of 4 weeks for your order to arrive. All relevant customs or import duties are the sole responsibility of the customer.
How will I know once my order has been dispatched?
We’ll send you an email as soon as your order is on its way. We may ship items separately in the event of one or more of the items being delayed, but you will always receive an email from one of our Customer Wellbeing team beforehand if this is the case.
