Rather than add another entry to the "I use tent XXXX, and I think it's good" list (a
Hilleberg Akto, £230 in 2008 when I bought it, £680 now), I thought I'd offer more general advice by suggesting some questions you may like to think about the answer to before making a choice.
Since you asked for a recommendation, I'll suggest a
Wild Country Zephyros 2.
By no coincidence, this is an Akto clone
A) Euro style or American style?
Euro style tents typically have a solid fabric inner, and an outer that comes right down to the ground.
American style tents typically have large areas of mesh on the inner, and the outer leaves a sizeable gap between its lower edge and the ground.
American style tents have considerably better ventilation, and hence suffer from condensation* less often, but on the other hand, they don't warm up inside to the same extent that Euro style tents can. (The two go together, temperature differences being what causes condensation.)
They can also, in some conditions, allow wet mist, or fine sand, to blow under the edge of the outer, and through the mesh of the inner.
B) End entry or side entry
End entry tents (e.g.
@chriswoody, post 13) can be uncomfortable for cooking if you aren't happy sitting crosslegged in the entrance for long enough. They also tend to have comparatively little porch space, which may mean that you don't have the option of cooking in the porch, should the weather be too bad to do so outside. Porch size is often particularly poor when the inner door isn't vertical.
Side entry tents (e.g.@numbnuts, post 14) allow you to lie on your side and cook** with your free hand. The porches are also generally quite a bit larger, often enough so that you can cook in one end and store your panniers in the other (thus not requiring space for them in the inner). On the flip side, it's easier to let rain into the inner on entry/exit, and, if there are two of you and there's only a door one side, the person on the non-door side has to climb over the other person for any nocturnal toilet visit.
C) Size
Bear in mind that larger tents weigh more and pack larger than small tents.
Smaller tents will, all other things being equal, warm up more and suffer more condensation than larger tents.
Tent sizes are usually quoted like 1, 1+, 2, 2+, 3..., where the number is the nominal number of people, and a + means it's either fairly generous for the indicated number of people, or that you may possible squeeze another person in if you're friendly, and don't move about too much in the night. It's common for cycle campers to go for a tent that's n+1, for the extra space, but going for 2+ or 3 when the second person is only occasionally present, would, I feel, be a mistake.
My Akto is strictly one person (i.e. there's no way to accommodate a second person without removing the inner and using just the outer). I find this OK, but I generally don't bring anything into the inner other than sleeping bag/pillow/mat, and any clothes I intend to wear in the morning. Everything else remains in the porch, either in the panniers, or loose (stove etc), but pushed down to the non-door end of the porch.
D) Ease of pitching
It's difficult to be sure without actually using a tent yourself for a fair period, but you can try asking about specific models, and it's worth considering how you'd manage, on your own, on a windy day (call it 25-30 mph). A tent is at its most vulnerable when it's up far enough to catch the wind, but the outer isn't properly tensioned and you don't have any guys in.
What can be a problem is the throw over outer of an inner first pitching tent, if you've only previously used it in calm weather
* Condensation: None is not a valid choice; you'll get some sometimes regardless of what tent you have. In general, all tents will get condensation when there's a dew on the grass outside.
** Cooking: It's always recommended that you cook well outside the tent. However, this is Britain, and the weather will often mean that you need to cook in the shelter of an open porch, and can sometimes mean that you've a choice of cooking in a closed porch or going hungry. This is less of a problem if there's actually space to do so, both in terms of floor area, and clear space above the stove & pan. If your tent doesn't have porch space, I'd suggest you use a Trangia 25/27, as they would tolerate being left to their own devices outside better than most other stoves.
I'd still recommend that you get the stove running outside before bringing it in (any flare-ups are most likely at startup or refuelling), and that you turn the stove off as soon as you're done with cooking.
Sleeping Mats.
You've a choice of 3 types
1) Closed cell foam (eg
Thermarest RidgeRest), 100% reliable (short of putting it in the fire), bulky, not all that comforable (similar to the living room carpet?)
2) Self-inflating (e.g.
Themarest ProLite). An open-cell foam core with an airtight cover bonded to it, with the foam keeping the whole mat mat shaped. Typically 1" thick, and fairly comfortable. Failure is by puncture (fixable), or by delamination (the cover to core bond failing) or the valve failing (rare), both not fixable, except by warranty replacement, which is generally not convenient mid-trip.
3) Insulated air beds (eg
Thermarest NeoAir). A lightweight airbed, with added insulation of some type. Typically 2.5 to 3" thick, and comfortable. Failure is by puncture (fixable), or by baffle failure (the baffles that form the "tube edges" failing, so instead of 2 small tubes, you've got one very fat one) or the valve failing (both not fixable)
Bear in mind that the insulated airbeds need inflating. The NeoAir mats can be inflated by blowing if necessary (don't rush it, or you'll go light headed), but most need some sort of pump sack arrangment in order to keep the insulation from getting wet. Small electric pumps do exist, but you'd need to check vavle compatibility.
The warmth is indicated by R-value. I reckon that you'd want 2.5 or more for 3 season use, or mayby more if you figure you'd feel the cold more than me. I found the cold was noticeable with a 2.5R mat on a frosty night, but not so noticeable that it kept me awake.
Just for confusion, occasionally you'll see R given using SI units (rather than deg F, BTUs, sq. feet and hours). The difference is such that 1 SI unit = 5.7 US units, so hopefully you'd spot it.
Pillows:
I also like the Sea to Summit Aeros, which I prefer to the Exped I had before.