It's not quite glamping but it's a step up from roughing it as well. Astrolodge features a dozen or so tented camps with comfy beds; excellent bathrooms (one in a shipping container) and a social, vaguely hippie-esque common area with wi-fi and charging station. It's nicely positioned between Setúbal and Parque Natural da Arrábida.
Astrolodge
Setúbal