2 man CampFeuer popup tent
This tent goes up incredibly fast and (with practice) down almost as quick. We used a tent like this for some time and thought it was great. You dont have lots of space inside, particularly when the tent is wet, but going up and down in just a few minutes, it is great for hiking.
                                      £35 tent
Active Era® Large 2 Person Pop Up Tent – Water-Resistant, Ventilated and Durable
Like the tent above this goes up and down again reasonably fast. Being more expensive though, the waterproofing is better, and it is more durable also slightly bigger
                                         £49.99
Coleman Pop Up Tent Galiano, 2/4 Man
Larger tent, coming in two sizes. Better waterproofing so less sensitive to touching the side. As with all these tents, goes up and down fast.
Ranging in price from £45 for the smallest to 108.57 for the biggest
Night camp pop up tent 2 3 4 man tent
Single room but large enough for 4 to sleep side by side. Single room, but goes up and down very fast.
                                       £69.99