I use this one and love it. Sleeps two people very comfortably. A queen sized mattress fits, but doesn't leave much room. You could also for for the 6 person size which is still in your price range.

Coleman Sundome 4-Person Tent, Green https://www.amazon.com/dp/B004J2GUOU/ref=cm_sw_r_cp_api_i_D6l8CbJ85YSX1 this one is super roomy and durable, me and a friend share a 4 person which is only like $50 and its suped roomy and nice for such a cheap price