You can’t go past yoga for a workout that adds flexibility and strength and requires very little equipment. You can do it on the lounge carpet, or on an exercise mat if you have one.
Yoga’s rise in popularity is thanks to its wider health benefits. As yoga becomes more widely practised, there is increasing data on its positive effect not only on physical health but also mental and emotional wellbeing.
For a great introduction to yoga and some simple exercises you can do at home, the following video provides some slow and gentle yoga with Adrienne; a popular online yoga instructor from the USA.