The service is available in two slots, from 5 pm until 7 pm and 7 pm until 9 pm, on 4, 5 and 6 December.
It’s also available from 12 pm until 4 pm on Saturday 7 and Sunday 8 December.
You can book a slot online for a minimum donation of £5, with all money raised going towards the Wild at Heart Foundation, who rescue dogs across the world.
There are some rules to make sure dogs, owners and staff are comfortable.
Dogs must be over a year old, sociable with other animals and humans, happy in supervised dog care, fully vaccinated, in good health and neutered or sprayed.
If there’s anything else the staff need to know about your dog, you can let them know before you arrive.
On a hot summer day, fill up an inflatable pool with water and ice.
Organisers add that you might be turned away if your dog seems distressed or unhappy, so make sure the experience is right for your fluffy friend before you book.
And of course, don’t forget to pick up a very special gift for your pet while you shop.