Hooray, hooray - I just ordered my longer yoga mat - I found it on a website that was advertised on Facebook (of all places) -- http://www.manduka.com/eu/ . Good thing is, they have a European website (and judging on the telephone number, their EU offices are in Antwerp).
Just have a look at their description of the mat:
The Manduka eKO mat is the only choice for those who want a high-performance, durable yoga mat and are passionate about protecting our planet. The top surface is an innovative, proprietary closed-cell natural rubber. The sea-grass texture finish and superior cushioning are kind to your body and the environment. This natural rubber mat uses a toxic-free softening process and is completely free of foaming agents and plasticizers found in other mats. The eKO represents a bright future for eco-friendly yoga mats - it leaves behind no footprint in landfills, but will definitely make a lasting impression in the studio.
Just reading it makes me feel professional and sustainable at the same time - like a real yogi....
Most important thing for me however is that I will finally be able to fit both my heels and my head on the mat when in corpse pose (with 10cm spare!!)
Today is also my 10th consecutive day of asana practice - that's day 10 of the 40-day challenge. I must say that daily asana's are already getting under my skin - if I can not practise in the morning, I'm already thinking when I will be able to fit in at least 20 minutes of practise later that day. And you know what - it feels good, I'm always happy that I made time to do my asana's. In the end, that was one of the things I was aiming for in the first place - happiness.
Got to go - my yoga mat is calling!