I would recommend you do it on the bed only if there is no other space, and try to keep the movements basic and light. I'm keen on safe work-outs, and if you don't practice yoga regularly, doing it on a hard surface would provide better support, and you'd be more likely to develop the confidence to deepen your practice.

I'll continue practicing on the bed, with hopes that I find techniques to improve on things that wouldn't occur to me on hard surfaces.

Best wishes for you, and thanks for stopping by:)