In the UK, the Zebra Home Training Mat is currently available from just one place, Fight N Fit MMA here in Bristol. You can either head over to their shop on 317 Two Mile Hill Road in Kingswood, or order online from the website. It's a fairly hefty £219 delivered, or (at time of writing) £199.99 from the shop, though that includes the no doubt equally hefty customs fees. In the US, Budovideos sells it for $249 here. They come in either black or blue.
Rorion threw down some mats in order to start teaching a small group of students. Several decades down the line, training at home is a luxury for some, who want to supplement what they've been taught at their local school. For others, it is a necessity, getting together a group of like-minded individuals because there is no other option for hundreds or even thousands of miles (though the latter situation is becoming increasingly rare).
Back in Rorion's garage academy days, the surface would presumably have been judo tatami or perhaps wrestling mats, individual squares of padded material. Anyone who has been training in martial arts a while, unless you've never done any grappling at all, will probably be familiar with dragging mats across the floor before class starts, then stacking them all back up in a cupboard. These squares are not portable, they slide around and you invariably catch toes and fingers in the gaps, at best tripping and at worst injuring yourself.
The market of people training in their garages, basements and living rooms has grown sufficiently large that there are now a number of different suppliers of portable, compact home training mats. Among the most important innovations in that regard is the arrival of mats that can be rolled up, rather than having to stack them up in a pile. Being able to simply spread the roll onto the floor is much quicker than the laborious chore of laying out squares of mats. It is also a significant step up in convenience for transportation and storage.
As far as I can tell, the roll out mat was invented by Gary Heartsfield in 2001, or at least the particular method most commonly used today (as per the patent). The abstract included with the patent listing describes it as follows:
A floor mat with a seamless top surface and a segmented cushion layer. The seamless top surface eliminates gaps, crevices, and seams that may adversely affect performance or durability of the sports mat. The segmented cushion layer provides an essentially continuous cushioned mat when the mat is in an unrolled configuration and reduces the likelihood of damage to the sports mat due to an exposed top surface or compressed cushion layer. The floor mat may be rolled up into a storage and transportation configuration without turning the mat over. The floor mat is also configured to permit one person to roll and unroll it.
In the United States, the best known company is probably Dollamur (particularly after they bought their competitor, Swain, in 2008), for whom Heartsfield was working when he came up with the new process. Dollamur is mainly associated with wrestling, but it has also expanded to pretty much any sport that could require a matted surface at home (e.g., gymnastics, various striking styles and of course jiu jitsu). Rorion's Gracie Academy also has their own brand of mats, for the 'Gracie Garages' that pay homage to that original training set up, resurrected for Gracie Combatives. Jeff Rockwell's school uses yet another supplier, EZ Flex Mats who used to be part of Dollamur.
According to this interesting thread from a Canadian Zebra Mat employee, the standard Zebra mats are made in Germany, a fact of which that particular employee is very proud. However, the Zebra Home Training roll out mat is made in China. There is a commercial roll out mat (i.e., for use by wrestling teams, jiu jitsu schools, MMA clubs etc) made in the US, but that is not available online.
When I trained at Rockwell's school in November 2012, I had my first experience of training on roll-out mats. Rockwell's location (he has two: the other is at the University of Texas) is an aerobics room in a fitness gym. It was impressive how that could go from a bunch of exercise bikes on a hardwood floor into a fully-matted jiu jitsu academy in a matter of minutes. The mats (from a company called EZ Flex) were stored elsewhere in three big rolls, which had been cut to fit the available area exactly. These mats also had one major advantage over the Zebra version: a velcro strip along the edges. There is a corresponding strip to go on top, meaning the mats lock together quickly and securely. This is something Dollamur does as well, dubbing it 'Flexi-Connect'.
The Zebra roll out mat does not have any kind of attachment system. If you have more than one, you would therefore need to connect them with tape. According to some reviews, this can potentially became a tripping hazard, depending on how thick the tape is and whether or not the edges stay in place. Hopefully in future, Zebra will add some variant of the velcro innovation, as that is a far more reliable and convenient way of keeping the mats together. Naturally it isn't a concern if you only have one, but to do any serious sparring, you would need at least two mats. Still, tape can be a long term solution if you aren't planning to keep moving the mats into a storage cupboard or elsewhere after training. For example, the mats at Revolution Dojo were held together with tape, which is true of numerous other gyms I've visited.
A few of those same reviews I've read have mentioned that without locking down the roll out mat in some way (such as nailing a wooden border around the edge), it will slide around every bit as much as traditional mats. I did not notice an issue with the mat I tested, but then that was in my lounge, so there wasn't much opportunity for it to move. This was also on carpet, which provides further friction: on a smoother surface, like a gym, school or community hall, it may not be as stable.
The 5 x 10 foot size is also larger than I realised. I had expected I could just move a few chairs out of the way, but it actually involved pretty much clearing the room of furniture. Of course, I live in a Victorian terrace, which is not very large, especially by American standards. The Zebra Home Training Mat is therefore more than enough for your drilling needs. I could happily scissor sweep my girlfriend in either direction (though lengthways is of course preferable, as that is 10 feet rather than 5), along with a few cross arm and belt sweeps followed by mount escapes.
If you stay relatively controlled, then you can spar on the Zebra mat too. My girlfriend doesn't train, so to test this I just told her to try and push me off the mat, whereas my goal was to stay put. We both remained on the mat, even when she forcefully kicked into my chest with both feet and threw me backwards. However, if you brought standing guard passes, scrambles and more explosive sweeps into the mix, there would not be space. I also wouldn't recommend full-power takedowns, though you could drill them lightly (e.g., a throw where you support them on the way down).
The surface is very comfortable to roll on, every bit as good as the typical mats I've experienced at various clubs in the UK and USA. My girlfriend commented how she could imagine putting five or six people to sleep on them (though she meant that in the sense of people staying over after a party, rather than a boast of her awesome choking prowess ;D). When you roll it back up, you can keep it in place using a strap with a buckle, provided by Zebra when you buy the mats. The circumference when rolled is roughly 45cm. This is very important to note if you're intending to store your mat in the attic: I only just had enough clearance for mine.
The foam on the bottom is not especially tough, so it will get scratched if you aren't careful. There was a large chunk bitten out of mine, which may have happened when I was carrying it back, or perhaps in transit to the academy. It also got some nicks on its way into the attic, due to the tight squeeze. Either way, you need to take care when moving your mat around if you want to keep it in good condition.
The edge of the mat may rise up slightly after being repeatedly rolled up for transportation: it certainly did with the sample from the shop, which has been to lots of trade shows. As that's right at the end, if it did happen, I do not think it would impinge on training in a typical home setting. The main time where I could see it being a problem is if you had several mats and you wanted more than 10 feet, so laid them end to end. That rising edge would then have to be taped down, as it would otherwise (I assume, as I haven't been able to test this) be a tripping hazard.
In the UK, the Zebra roll out mat is currently available from only one place, Fight N Fit MMA here in Bristol. You can either head over to the shop on 317 Two Mile Hill Road in Kingswood, or order online from the website. It's quite expensive at £219 delivered, or (at time of writing) £199.99 from the shop, but then it would be a lot more if you had to get it shipped across the sea. If you live in the US, there is much more competition and they do not have to ship so far, meaning a lower price. Budovideos sells Zebra Home Training Mats for $249 here, for the 5 x 10 foot version.