Mammoth free mattress upgrade

Get more Mammoth for you money with a FREE UPGRADE

Offer valid between 26th December 2017 and 25th February 2018

For our January Sale we're offering "King for Double" and "Superking for King" on all our Mammoth mattresses.

Buy any Double Mammoth Mattress and upgrade to a Kingsize for Free*

Buy any Kingsize Mammoth Mattress and upgrade to a Superking for Free*


*Important terms and conditions

  • Upgrade applies to mattress only
  • Upgrade does not include standard divan or headboards
  • Applies to orders received between 26/12/17 to 25/02/18 inclusive
  • Not to be used in conjunction with any other offer

Discount is automatically applied to the final price of the product.

We want our customers to experience a premium night's sleep so if you're thinking of changing your bed or mattress - choose one of our Mammoth mattresses and you'll save £££s on the list price along with FREE DELIVERY (to mainland UK).

So take the plunge this winter and make 2018 the year for a better night's sleep.


Although buying online often offers great value, many people forget the importance of trying a bed (or mattress out for yourself). Forty Winks are not only one of the most competitive bed shops in the UK currently; stocking the very latest in soft, medium and firm mattresses with the highest quality at the lowest prices, we are also in the high street as well!

Call Forty Winks on 01252 543000.

Or visit our store at

 25-27 Camp Road
Hampshire, GU14 6EN