Trying tents in a showroom in London?

Folks,

My partner and I want to get a two-man tent, but we'd like to try lying in them and have a feel, really.
Do you know of a place in London that would have more than a couple of tents on display?

Cheers

Decathlon is one place (at least the one in Surrey Quays).

I would second @Aroogah, Surrey Quays is best spot as they have usually various tents out and built in car park or around shop.

Worth checking out 3-man tents too, normally a tiny weight penalty and the extra space is always useful.

Any Go Outdoors nearby ? They have a large layout of set up tents on display in all the stores i have been into.
Edgeware road NW9 6TH https://www.gooutdoors.co.uk/store-finder

+1 with @hamrack
Scored a Wildcountry Zep Lite XL in one of Terra Novas season clearouts. Can cram 4 in it or a very luxury 2. Same packsize as our Laser comp 2 and only a slight weight gain, but the extra headroom and space is so much easier. Can pitch the Laser 2 inside the flysheet of the XL :)
https://www.terra-nova.co.uk/sale/tent-sale/

We have a Wild Country Hoolie 3 ETC that has turned out so well our friends copied us. Masses of space for the weight, great quality. Not so good (ie. impossible) if you can't use guys but flipside is easy pitching.

we'd like to try lying in them and have a feel

sitrep: Decathlon Surrey Quays delivered. thank you all for the advice. :D

photos of it up in the garden or a creative pitching in your front room (might live in a flat no garden got to think of these things)
photos or it never happened :)